diff --git a/ydb/public/lib/ydb_cli/commands/ydb_service_import.cpp b/ydb/public/lib/ydb_cli/commands/ydb_service_import.cpp
index e83f89e11c66..509a7ccc7302 100644
--- a/ydb/public/lib/ydb_cli/commands/ydb_service_import.cpp
+++ b/ydb/public/lib/ydb_cli/commands/ydb_service_import.cpp
@@ -6,7 +6,6 @@
 #include <ydb/public/lib/ydb_cli/common/print_operation.h>
 #include <ydb/public/lib/ydb_cli/common/interactive.h>
 #include <ydb/public/lib/ydb_cli/dump/files/files.h>
-#include <ydb/public/lib/ydb_cli/import/import.h>
 #include <ydb/library/backup/util.h>
 
 #include <util/string/builder.h>
@@ -302,6 +301,17 @@ void TCommandImportFromCsv::Config(TConfig& config) {
     config.Opts->AddLongOption("newline-delimited",
             "No newline characters inside records, enables some import optimizations (see docs)")
         .StoreTrue(&NewlineDelimited);
+    TStringStream description;
+    description << "Format that data will be serialized to before sending to YDB. Available options: ";
+    NColorizer::TColors colors = NColorizer::AutoColors(Cout);
+    description << "\n  " << colors.BoldColor() << "tvalue" << colors.OldColor()
+        << "\n    " << "A default YDB protobuf format";
+    description << "\n  " << colors.BoldColor() << "arrow" << colors.OldColor()
+        << "\n    " << "Apache Arrow format";
+    description << "\nDefault: " << colors.CyanColor() << "\"" << "tvalue" << "\"" << colors.OldColor() << ".";
+    config.Opts->AddLongOption("send-format", description.Str())
+        .RequiredArgument("STRING").StoreResult(&SendFormat)
+        .Hidden();
     if (InputFormat == EDataFormat::Csv) {
         config.Opts->AddLongOption("delimiter", "Field delimiter in rows")
             .RequiredArgument("STRING").StoreResult(&Delimiter).DefaultValue(Delimiter);
@@ -325,6 +335,7 @@ int TCommandImportFromCsv::Run(TConfig& config) {
     settings.HeaderRow(HeaderRow);
     settings.NullValue(NullValue);
     settings.Verbose(config.IsVerbose());
+    settings.SendFormat(SendFormat);
 
     if (Delimiter.size() != 1) {
         throw TMisuseException()
diff --git a/ydb/public/lib/ydb_cli/commands/ydb_service_import.h b/ydb/public/lib/ydb_cli/commands/ydb_service_import.h
index c6eb4f57e6c4..dd1f85fa18b1 100644
--- a/ydb/public/lib/ydb_cli/commands/ydb_service_import.h
+++ b/ydb/public/lib/ydb_cli/commands/ydb_service_import.h
@@ -7,6 +7,7 @@
 #include <ydb/public/lib/ydb_cli/common/aws.h>
 #include <ydb/public/lib/ydb_cli/common/format.h>
 #include <ydb/public/lib/ydb_cli/common/parseable_struct.h>
+#include <ydb/public/lib/ydb_cli/import/import.h>
 
 namespace NYdb::NConsoleClient {
 
@@ -86,6 +87,7 @@ class TCommandImportFromCsv : public TCommandImportFileBase {
     ui32 SkipRows = 0;
     bool Header = false;
     bool NewlineDelimited = true;
+    NConsoleClient::ESendFormat SendFormat = NConsoleClient::ESendFormat::Default;
 };
 
 class TCommandImportFromTsv : public TCommandImportFromCsv {
diff --git a/ydb/public/lib/ydb_cli/common/csv_parser.cpp b/ydb/public/lib/ydb_cli/common/csv_parser.cpp
index 76d0dce81e3f..6da0db843cf4 100644
--- a/ydb/public/lib/ydb_cli/common/csv_parser.cpp
+++ b/ydb/public/lib/ydb_cli/common/csv_parser.cpp
@@ -15,9 +15,7 @@ class TCsvToYdbConverter {
 public:
     explicit TCsvToYdbConverter(TTypeParser& parser, const std::optional<TString>& nullValue)
         : Parser(parser)
-        , NullValue(nullValue)
-    {
-    }
+        , NullValue(nullValue) {}
 
     template <class T, std::enable_if_t<std::is_integral_v<T> && std::is_signed_v<T>, std::nullptr_t> = nullptr>
     static i64 StringToArithmetic(const TString& token, size_t& cnt) {
@@ -165,7 +163,7 @@ class TCsvToYdbConverter {
         }
         case EPrimitiveType::Interval64:
             Builder.Interval64(GetArithmetic<i64>(token));
-            break;            
+            break;
         case EPrimitiveType::TzDate:
             Builder.TzDate(token);
             break;
@@ -441,7 +439,7 @@ TStringBuf Consume(NCsvFormat::CsvSplitter& splitter,
 
 TCsvParser::TCsvParser(TString&& headerRow, const char delimeter, const std::optional<TString>& nullValue,
                        const std::map<std::string, TType>* destinationTypes,
-                       const std::map<TString, TString>* paramSources) 
+                       const std::map<TString, TString>* paramSources)
     : HeaderRow(std::move(headerRow))
     , Delimeter(delimeter)
     , NullValue(nullValue)
@@ -454,7 +452,7 @@ TCsvParser::TCsvParser(TString&& headerRow, const char delimeter, const std::opt
 
 TCsvParser::TCsvParser(TVector<TString>&& header, const char delimeter, const std::optional<TString>& nullValue,
                        const std::map<std::string, TType>* destinationTypes,
-                       const std::map<TString, TString>* paramSources) 
+                       const std::map<TString, TString>* paramSources)
     : Header(std::move(header))
     , Delimeter(delimeter)
     , NullValue(nullValue)
@@ -529,41 +527,91 @@ void TCsvParser::BuildValue(TString& data, TValueBuilder& builder, const TType&
     builder.EndStruct();
 }
 
-TValue TCsvParser::BuildList(std::vector<TString>& lines, const TString& filename, std::optional<ui64> row) const {
+TValue TCsvParser::BuildList(const std::vector<TString>& lines, const TString& filename, std::optional<ui64> row) const {
     std::vector<std::unique_ptr<TTypeParser>> columnTypeParsers;
     columnTypeParsers.reserve(ResultColumnCount);
     for (const TType* type : ResultLineTypesSorted) {
         columnTypeParsers.push_back(std::make_unique<TTypeParser>(*type));
     }
-    
-    Ydb::Value listValue;
-    auto* listItems = listValue.mutable_items();
+
+    // Original path with local value object
+    Ydb::Value listProtoValue;
+    auto* listItems = listProtoValue.mutable_items();
     listItems->Reserve(lines.size());
-    for (auto& line : lines) {
-        NCsvFormat::CsvSplitter splitter(line, Delimeter);
-        TParseMetadata meta {row, filename};
-        auto* structItems = listItems->Add()->mutable_items();
-        structItems->Reserve(ResultColumnCount);
-        auto headerIt = Header.cbegin();
-        auto skipIt = SkipBitMap.begin();
-        auto typeParserIt = columnTypeParsers.begin();
-        do {
-            if (headerIt == Header.cend()) { // SkipBitMap has same size as Header
-                throw FormatError(yexception() << "Header contains less fields than data. Header: \"" << HeaderRow << "\", data: \"" << line << "\"", meta);
-            }
-            TStringBuf nextField = Consume(splitter, meta, *headerIt);
-            if (!*skipIt) {
-                *structItems->Add() = FieldToValue(*typeParserIt->get(), nextField, NullValue, meta, *headerIt).GetProto();
-                ++typeParserIt;
-            }
-            ++headerIt;
-            ++skipIt;
-        } while (splitter.Step());
+
+    for (const auto& line : lines) {
+        ProcessCsvLine(line, listItems, columnTypeParsers, row, filename);
         if (row.has_value()) {
             ++row.value();
         }
     }
-    return TValue(ResultListType.value(), std::move(listValue));
+
+    // Return a TValue that takes ownership via move
+    return TValue(ResultListType.value(), std::move(listProtoValue));
+}
+
+TValue TCsvParser::BuildListOnArena(
+    const std::vector<TString>& lines,
+    const TString& filename,
+    google::protobuf::Arena* arena,
+    std::optional<ui64> row
+) const {
+    Y_ASSERT(arena != nullptr);
+
+    std::vector<std::unique_ptr<TTypeParser>> columnTypeParsers;
+    columnTypeParsers.reserve(ResultColumnCount);
+    for (const TType* type : ResultLineTypesSorted) {
+        columnTypeParsers.push_back(std::make_unique<TTypeParser>(*type));
+    }
+
+    // allocate Ydb::Value on arena
+    Ydb::Value* listProtoValue = google::protobuf::Arena::CreateMessage<Ydb::Value>(arena);
+    auto* listItems = listProtoValue->mutable_items();
+    listItems->Reserve(lines.size());
+
+    for (const auto& line : lines) {
+        ProcessCsvLine(line, listItems, columnTypeParsers, row, filename);
+        if (row.has_value()) {
+            ++row.value();
+        }
+    }
+
+    // Return a TValue that references the arena-allocated message
+    return TValue(ResultListType.value(), listProtoValue);
+}
+
+// Helper method to process a single CSV line
+void TCsvParser::ProcessCsvLine(
+    const TString& line,
+    google::protobuf::RepeatedPtrField<Ydb::Value>* listItems,
+    const std::vector<std::unique_ptr<TTypeParser>>& columnTypeParsers,
+    std::optional<ui64> currentRow,
+    const TString& filename
+) const {
+    NCsvFormat::CsvSplitter splitter(line, Delimeter);
+    auto* structItems = listItems->Add()->mutable_items();
+    structItems->Reserve(ResultColumnCount);
+
+    const TParseMetadata meta {currentRow, filename};
+
+    auto headerIt = Header.cbegin();
+    auto skipIt = SkipBitMap.begin();
+    auto typeParserIt = columnTypeParsers.begin();
+
+    do {
+        if (headerIt == Header.cend()) { // SkipBitMap has same size as Header
+            throw FormatError(yexception() << "Header contains less fields than data. Header: \"" << HeaderRow << "\", data: \"" << line << "\"", meta);
+        }
+        TStringBuf nextField = Consume(splitter, meta, *headerIt);
+        if (!*skipIt) {
+            TValue builtValue = FieldToValue(*typeParserIt->get(), nextField, NullValue, meta, *headerIt);
+            *structItems->Add() = std::move(builtValue.GetProto());
+
+            ++typeParserIt;
+        }
+        ++headerIt;
+        ++skipIt;
+    } while (splitter.Step());
 }
 
 void TCsvParser::BuildLineType() {
@@ -607,5 +655,10 @@ const TVector<TString>& TCsvParser::GetHeader() {
     return Header;
 }
 
+const TString& TCsvParser::GetHeaderRow() const {
+    return HeaderRow;
+}
+
 }
 }
+
diff --git a/ydb/public/lib/ydb_cli/common/csv_parser.h b/ydb/public/lib/ydb_cli/common/csv_parser.h
index 05c3def83d9c..7cad2fcb5d09 100644
--- a/ydb/public/lib/ydb_cli/common/csv_parser.h
+++ b/ydb/public/lib/ydb_cli/common/csv_parser.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/params/params.h>
+#include <google/protobuf/arena.h>
 
 #include <library/cpp/string_utils/csv/csv.h>
 
@@ -35,10 +36,20 @@ class TCsvParser {
 
     void BuildParams(TString& data, TParamsBuilder& builder, const TParseMetadata& meta) const;
     void BuildValue(TString& data, TValueBuilder& builder, const TType& type, const TParseMetadata& meta) const;
-    TValue BuildList(std::vector<TString>& lines, const TString& filename,
+
+    TValue BuildList(const std::vector<TString>& lines, const TString& filename,
                      std::optional<ui64> row = std::nullopt) const;
+
+    TValue BuildListOnArena(
+        const std::vector<TString>& lines,
+        const TString& filename,
+        google::protobuf::Arena* arena,
+        std::optional<ui64> row = std::nullopt
+    ) const;
+
     void BuildLineType();
     const TVector<TString>& GetHeader();
+    const TString& GetHeaderRow() const;
 
 private:
     TVector<TString> Header;
@@ -60,6 +71,15 @@ class TCsvParser {
     // Types of columns in a single row in resulting TValue.
     // Column order according to the header, though can have less elements than the Header
     std::vector<const TType*> ResultLineTypesSorted;
+
+    // Helper method to process a single line of CSV data
+    void ProcessCsvLine(
+        const TString& line,
+        google::protobuf::RepeatedPtrField<Ydb::Value>* listItems,
+        const std::vector<std::unique_ptr<TTypeParser>>& columnTypeParsers,
+        std::optional<ui64> currentRow,
+        const TString& filename
+    ) const;
 };
 
 }
diff --git a/ydb/public/lib/ydb_cli/common/csv_parser_ut.cpp b/ydb/public/lib/ydb_cli/common/csv_parser_ut.cpp
index eccfacbf92ce..7d2f1e1593a6 100644
--- a/ydb/public/lib/ydb_cli/common/csv_parser_ut.cpp
+++ b/ydb/public/lib/ydb_cli/common/csv_parser_ut.cpp
@@ -317,7 +317,7 @@ Y_UNIT_TEST_SUITE(YdbCliCsvParserTests) {
             {"col2", TTypeBuilder().BeginOptional().Primitive(EPrimitiveType::Int64).EndOptional().Build()},
             {"col3", TTypeBuilder().Primitive(EPrimitiveType::Bool).Build()},
         };
-        
+
         TString csvHeader = "col4,col3,col5,col1,col6";
         std::vector<TString> data = {
             "col4 unused value,true,col5 unused value,col1 value,col6 unused value"
diff --git a/ydb/public/lib/ydb_cli/import/import.cpp b/ydb/public/lib/ydb_cli/import/import.cpp
index beb067c7e13f..5a798618160d 100644
--- a/ydb/public/lib/ydb_cli/import/import.cpp
+++ b/ydb/public/lib/ydb_cli/import/import.cpp
@@ -11,6 +11,8 @@
 #include <ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/scheme/scheme.h>
 #include <ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/table/table.h>
 
+#include <google/protobuf/arena.h>
+
 #include <ydb/public/api/protos/ydb_formats.pb.h>
 #include <ydb/public/api/protos/ydb_table.pb.h>
 #include <ydb/public/lib/json_value/ydb_json_value.h>
@@ -25,6 +27,7 @@
 #include <library/cpp/string_utils/csv/csv.h>
 #include <library/cpp/threading/future/async.h>
 #include <library/cpp/yaml/as/tstring.h>
+#include <ydb/library/formats/arrow/csv/table/table.h>
 
 #include <util/folder/path.h>
 #include <util/generic/vector.h>
@@ -50,6 +53,7 @@
 #include <unistd.h>
 #endif
 
+#include <ydb/public/lib/ydb_cli/commands/ydb_command.h>
 
 namespace NYdb {
 namespace NConsoleClient {
@@ -555,6 +559,16 @@ class TImportFileClient::TImpl {
                               std::shared_ptr<TProgressFile> progressFile);
     TAsyncStatus UpsertTValueBuffer(const TString& dbPath, TValueBuilder& builder);
     TAsyncStatus UpsertTValueBuffer(const TString& dbPath, std::function<TValue()>&& buildFunc);
+
+    TAsyncStatus UpsertTValueBufferParquet(
+        const TString& dbPath,
+        std::shared_ptr<arrow::RecordBatch> batch,
+        const arrow::ipc::IpcWriteOptions& writeOptions
+    );
+
+    TAsyncStatus UpsertTValueBufferOnArena(
+        const TString& dbPath, std::function<TValue(google::protobuf::Arena*)>&& buildFunc);
+
     TStatus UpsertJson(IInputStream &input, const TString &dbPath, std::optional<ui64> inputSizeHint,
                        ProgressCallbackFunc & progressCallback);
     TStatus UpsertParquet(const TString& filename, const TString& dbPath, ProgressCallbackFunc & progressCallback);
@@ -672,7 +686,7 @@ TStatus TImportFileClient::TImpl::Import(const TVector<TString>& filePaths, cons
     auto start = TInstant::Now();
 
 
-    TThreadPool jobPool;
+    TThreadPool jobPool(IThreadPool::TParams().SetThreadNamePrefix("FileWorker"));
     jobPool.Start(filePathsSize);
     TVector<NThreading::TFuture<TStatus>> asyncResults;
 
@@ -925,6 +939,99 @@ TAsyncStatus TImportFileClient::TImpl::UpsertTValueBuffer(const TString& dbPath,
         });
 }
 
+inline TAsyncStatus TImportFileClient::TImpl::UpsertTValueBufferParquet(
+    const TString& dbPath,
+    std::shared_ptr<arrow::RecordBatch> batch,
+    const arrow::ipc::IpcWriteOptions& writeOptions
+) {
+    if (!RequestsInflight->try_acquire()) {
+        if (Settings.Verbose_ && Settings.NewlineDelimited_) {
+            if (!InformedAboutLimit.exchange(true)) {
+                Cerr << (TStringBuilder() << "@ (each '@' means max request inflight is reached and a worker thread is waiting for "
+                "any response from database)" << Endl);
+            } else {
+                Cerr << '@';
+            }
+        }
+        RequestsInflight->acquire();
+    }
+
+    auto retryFunc = [parquet = NYdb_cli::NArrow::SerializeBatch(batch, writeOptions),
+            schema = NYdb_cli::NArrow::SerializeSchema(*batch->schema()),
+            dbPath](NTable::TTableClient& client) {
+        return client.BulkUpsert(dbPath, NTable::EDataFormat::ApacheArrow, parquet, schema)
+            .Apply([](const NTable::TAsyncBulkUpsertResult& result) {
+                return TStatus(result.GetValueSync());
+            });
+    };
+
+    return TableClient->RetryOperation(std::move(retryFunc), RetrySettings)
+        .Apply([this](const TAsyncStatus& asyncStatus) {
+            NYdb::TStatus status = asyncStatus.GetValueSync();
+            if (!status.IsSuccess()) {
+                if (!Failed.exchange(true)) {
+                    ErrorStatus = MakeHolder<TStatus>(status);
+                }
+            }
+            RequestsInflight->release();
+            return asyncStatus;
+        });
+}
+
+inline TAsyncStatus TImportFileClient::TImpl::UpsertTValueBufferOnArena(
+    const TString& dbPath, std::function<TValue(google::protobuf::Arena*)>&& buildFunc) {
+    auto arena = std::make_shared<google::protobuf::Arena>();
+
+    // For the first attempt values are built before acquiring request inflight semaphore
+    std::optional<TValue> prebuiltValue = buildFunc(arena.get());
+
+    auto retryFunc = [this, &dbPath, buildFunc = std::move(buildFunc),
+                                prebuiltValue = std::move(prebuiltValue), arena = std::move(arena)]
+            (NYdb::NTable::TTableClient& tableClient) mutable -> TAsyncStatus {
+        auto buildTValueAndSendRequest = [this, &buildFunc, &dbPath, &tableClient, &prebuiltValue, arena]() {
+            // For every retry attempt after first request build value from strings again
+            // to prevent copying data in retryFunc in a happy way when there is only one request
+            TValue builtValue = prebuiltValue.has_value() ? std::move(prebuiltValue.value()) : buildFunc(arena.get());
+            prebuiltValue = std::nullopt;
+
+            auto settings = UpsertSettings;
+            settings.Arena(arena.get());
+            return tableClient.BulkUpsert(
+                dbPath, std::move(builtValue), settings)
+                .Apply([](const NYdb::NTable::TAsyncBulkUpsertResult& bulkUpsertResult) {
+                    NYdb::TStatus status = bulkUpsertResult.GetValueSync();
+                    return NThreading::MakeFuture(status);
+                });
+        };
+        // Running heavy building task on processing pool:
+        return NThreading::Async(std::move(buildTValueAndSendRequest), *ProcessingPool);
+    };
+
+    if (!RequestsInflight->try_acquire()) {
+        if (Settings.Verbose_ && Settings.NewlineDelimited_) {
+            if (!InformedAboutLimit.exchange(true)) {
+                Cerr << (TStringBuilder() << "@ (each '@' means max request inflight is reached and a worker thread is waiting for "
+                "any response from database)" << Endl);
+            } else {
+                Cerr << '@';
+            }
+        }
+        RequestsInflight->acquire();
+    }
+
+    return TableClient->RetryOperation(std::move(retryFunc), RetrySettings)
+        .Apply([this](const TAsyncStatus& asyncStatus) {
+            NYdb::TStatus status = asyncStatus.GetValueSync();
+            if (!status.IsSuccess()) {
+                if (!Failed.exchange(true)) {
+                    ErrorStatus = MakeHolder<TStatus>(status);
+                }
+            }
+            RequestsInflight->release();
+            return asyncStatus;
+        });
+}
+
 TStatus TImportFileClient::TImpl::UpsertCsv(IInputStream& input,
                                      const TString& dbPath,
                                      const TString& filePath,
@@ -986,30 +1093,108 @@ TStatus TImportFileClient::TImpl::UpsertCsv(IInputStream& input,
         }
     };
 
+    // Note: table = dbPath (path to the table on the server)
+    auto columns = DbTableInfo->GetTableColumns();
+
+    const Ydb::Formats::CsvSettings csvSettings = ([this]() {
+        Ydb::Formats::CsvSettings settings;
+        settings.set_delimiter(Settings.Delimiter_);
+        settings.set_header(Settings.Header_);
+        if (Settings.NullValue_.has_value()) {
+            settings.set_null_value(Settings.NullValue_.value());
+        }
+        settings.set_skip_rows(Settings.SkipRows_);
+        return settings;
+    }());
+
+    auto writeOptions = arrow::ipc::IpcWriteOptions::Defaults();
+    constexpr auto codecType = arrow::Compression::type::ZSTD;
+    writeOptions.codec = *arrow::util::Codec::Create(codecType);
+
     auto upsertCsvFunc = [&](std::vector<TString>&& buffer, ui64 row, std::shared_ptr<TImportBatchStatus> batchStatus) {
-        auto buildFunc = [&, buffer = std::move(buffer), row, this] () mutable {
-            try {
-                return parser.BuildList(buffer, filePath, row);
-            } catch (const std::exception& e) {
-                if (!Failed.exchange(true)) {
-                    ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR, e.what()));
+        switch (Settings.SendFormat_) {
+            case ESendFormat::Default:
+            case ESendFormat::TValue:
+                {
+                    auto buildOnArenaFunc = [&, buffer = std::move(buffer), row, this] (google::protobuf::Arena* arena) mutable {
+                        try {
+                            return parser.BuildListOnArena(buffer, filePath, arena, row);
+                        } catch (const std::exception& e) {
+                            if (!Failed.exchange(true)) {
+                                ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR, e.what()));
+                            }
+                            jobInflightManager->ReleaseJob();
+                            throw;
+                        }
+                    };
+
+                    UpsertTValueBufferOnArena(dbPath, std::move(buildOnArenaFunc))
+                        .Apply([&, batchStatus](const TAsyncStatus& asyncStatus) {
+                            jobInflightManager->ReleaseJob();
+                            if (asyncStatus.GetValueSync().IsSuccess()) {
+                                batchStatus->Completed = true;
+                                if (!FileProgressPool->AddFunc(saveProgressIfAny) && !Failed.exchange(true)) {
+                                    ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR,
+                                        "Couldn't add worker func to save progress"));
+                                }
+                            }
+                            return asyncStatus;
+                        });
                 }
-                jobInflightManager->ReleaseJob();
-                throw;
-            }
-        };
-        UpsertTValueBuffer(dbPath, std::move(buildFunc))
-            .Apply([&, batchStatus](const TAsyncStatus& asyncStatus) {
-                jobInflightManager->ReleaseJob();
-                if (asyncStatus.GetValueSync().IsSuccess()) {
-                    batchStatus->Completed = true;
-                    if (!FileProgressPool->AddFunc(saveProgressIfAny) && !Failed.exchange(true)) {
-                        ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR,
-                            "Couldn't add worker func to save progress"));
+                break;
+            case ESendFormat::ApacheArrow:
+                {
+                    const i64 estimatedCsvLineLength = (!buffer.empty() ? 2 * buffer.front().size() : 10'000);
+                    TStringBuilder data;
+                    data.reserve((buffer.size() + (Settings.Header_ ? 1 : 0)) * estimatedCsvLineLength);
+                    // insert header if it is present in the given csv file
+                    if (Settings.Header_) {
+                        data << parser.GetHeaderRow() << Endl;
+                    }
+                    data << JoinSeq("\n", buffer) << Endl;
+
+                    // if header is present, it is expected to be the first line of the data
+                    TString error;
+                    auto arrowCsv = NKikimr::NFormats::TArrowCSVTable::Create(columns, Settings.Header_);
+                    if (arrowCsv.ok()) {
+                        if (auto batch = arrowCsv->ReadSingleBatch(data, csvSettings, error)) {
+                            if (!error) {
+                                // batch was read successfully, sending data via Apache Arrow
+                                UpsertTValueBufferParquet(dbPath, std::move(batch), writeOptions)
+                                    .Apply([&, batchStatus](const TAsyncStatus& asyncStatus) {
+                                        jobInflightManager->ReleaseJob();
+                                        if (asyncStatus.GetValueSync().IsSuccess()) {
+                                            batchStatus->Completed = true;
+                                            if (!FileProgressPool->AddFunc(saveProgressIfAny) && !Failed.exchange(true)) {
+                                                ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR,
+                                                    "Couldn't add worker func to save progress"));
+                                            }
+                                        }
+                                        return asyncStatus;
+                                    });
+                            } else {
+                                error = "Error while reading a batch from Apache Arrow: " + error;
+                            }
+                        } else {
+                            error = "Could not read a batch from Apache Arrow";
+                        }
+                    } else {
+                        error = arrowCsv.status().ToString();
+                    }
+
+                    if (!error.empty()) {
+                        if (!Failed.exchange(true)) {
+                            ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR, error));
+                        }
                     }
                 }
-                return asyncStatus;
-            });
+                break;
+            default:
+                if (!Failed.exchange(true)) {
+                    ErrorStatus = MakeHolder<TStatus>(MakeStatus(EStatus::INTERNAL_ERROR,
+                        (TStringBuilder() << "Unknown send format: " << Settings.SendFormat_).c_str()));
+                }
+        }
     };
 
     for (ui32 i = 0; i < rowsToSkip; ++i) {
@@ -1037,7 +1222,7 @@ TStatus TImportFileClient::TImpl::UpsertCsv(IInputStream& input,
             line.erase(line.size() - Settings.Delimiter_.size());
         }
 
-        buffer.push_back(line);
+        buffer.push_back(std::move(line));
 
         if (readBytes >= nextReadBorder && Settings.Verbose_) {
             nextReadBorder += VerboseModeStepSize;
diff --git a/ydb/public/lib/ydb_cli/import/import.h b/ydb/public/lib/ydb_cli/import/import.h
index 814298dff73e..86b3df069881 100644
--- a/ydb/public/lib/ydb_cli/import/import.h
+++ b/ydb/public/lib/ydb_cli/import/import.h
@@ -35,6 +35,13 @@ class TImportClient;
 
 namespace NConsoleClient {
 
+// EDataFormat to be used in operations related to structured data
+enum class ESendFormat {
+    Default /* "default" */,
+    TValue /* "tvalue" */,
+    ApacheArrow /* "arrow" */
+};
+
 struct TImportFileSettings : public TOperationRequestSettings<TImportFileSettings> {
     using TSelf = TImportFileSettings;
 
@@ -60,6 +67,7 @@ struct TImportFileSettings : public TOperationRequestSettings<TImportFileSetting
     FLUENT_SETTING_DEFAULT(TString, Delimiter, DefaultDelimiter);
     FLUENT_SETTING_DEFAULT(std::optional<TString>, NullValue, std::nullopt);
     FLUENT_SETTING_DEFAULT(bool, Verbose, false);
+    FLUENT_SETTING_DEFAULT(ESendFormat, SendFormat, ESendFormat::Default);
 };
 
 class TImportFileClient {
diff --git a/ydb/public/lib/ydb_cli/import/ya.make b/ydb/public/lib/ydb_cli/import/ya.make
index b6b4ff8c1754..9e28d5f8ac87 100644
--- a/ydb/public/lib/ydb_cli/import/ya.make
+++ b/ydb/public/lib/ydb_cli/import/ya.make
@@ -14,4 +14,6 @@ PEERDIR(
     library/cpp/string_utils/csv
 )
 
+GENERATE_ENUM_SERIALIZATION(import.h)
+
 END()
diff --git a/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/table/table.h b/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/table/table.h
index 01bccbc00c03..0e7aa8e81d6b 100644
--- a/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/table/table.h
+++ b/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/table/table.h
@@ -1162,6 +1162,8 @@ struct TBulkUpsertSettings : public TOperationRequestSettings<TBulkUpsertSetting
     // Format setting proto serialized into string. If not set format defaults are used.
     // I.e. it's Ydb.Table.CsvSettings for CSV.
     FLUENT_SETTING_DEFAULT(std::string, FormatSettings, "");
+    google::protobuf::Arena* Arena_ = nullptr;
+    TBulkUpsertSettings& Arena(google::protobuf::Arena* arena) { Arena_ = arena; return *this; }
 };
 
 struct TReadRowsSettings : public TOperationRequestSettings<TReadRowsSettings> {
diff --git a/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/value/value.h b/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/value/value.h
index a43f7f4aacba..9003d13c5dea 100644
--- a/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/value/value.h
+++ b/ydb/public/sdk/cpp/include/ydb-cpp-sdk/client/value/value.h
@@ -276,13 +276,19 @@ class TValue {
 public:
     TValue(const TType& type, const Ydb::Value& valueProto);
     TValue(const TType& type, Ydb::Value&& valueProto);
+    /**
+    * Lifetime of the arena, and hence the `Ydb::Value`, is expected to be managed by the caller.
+    * The `Ydb::Value` is expected to be arena-allocated.
+    *
+    * See: https://protobuf.dev/reference/cpp/arenas
+    */
+    TValue(const TType& type, Ydb::Value* arenaAllocatedValueProto);
 
     const TType& GetType() const;
-    TType & GetType();
+    TType& GetType();
 
     const Ydb::Value& GetProto() const;
     Ydb::Value& GetProto();
-
 private:
     class TImpl;
     std::shared_ptr<TImpl> Impl_;
diff --git a/ydb/public/sdk/cpp/src/client/impl/ydb_internal/grpc_connections/grpc_connections.h b/ydb/public/sdk/cpp/src/client/impl/ydb_internal/grpc_connections/grpc_connections.h
index f1a23631c94e..d65d408bf022 100644
--- a/ydb/public/sdk/cpp/src/client/impl/ydb_internal/grpc_connections/grpc_connections.h
+++ b/ydb/public/sdk/cpp/src/client/impl/ydb_internal/grpc_connections/grpc_connections.h
@@ -140,9 +140,55 @@ class TGRpcConnectionsImpl
             TRequest,
             TResponse>::TAsyncRequest;
 
+    template<typename TRequest>
+    class TRequestWrapper {
+    public:
+        // Implicit conversion from rvalue reference
+        TRequestWrapper(TRequest&& request) 
+            : Storage_(std::move(request))
+        {}
+
+        // Implicit conversion from pointer. Means that request is allocated on Arena
+        TRequestWrapper(TRequest* request)
+            : Storage_(request)
+        {}
+
+        // Copy constructor
+        TRequestWrapper(const TRequestWrapper& other) = default;
+        
+        // Move constructor
+        TRequestWrapper(TRequestWrapper&& other) = default;
+        
+        // Copy assignment
+        TRequestWrapper& operator=(const TRequestWrapper& other) = default;
+        
+        // Move assignment
+        TRequestWrapper& operator=(TRequestWrapper&& other) = default;
+
+        template<typename TService, typename TResponse>
+        void DoRequest(
+            std::unique_ptr<TServiceConnection<TService>>& serviceConnection,
+            NYdbGrpc::TAdvancedResponseCallback<TResponse>&& responseCbLow,
+            typename NYdbGrpc::TSimpleRequestProcessor<typename TService::Stub, TRequest, TResponse>::TAsyncRequest rpc,
+            const TCallMeta& meta,
+            IQueueClientContext* context) 
+        {
+            if (auto ptr = std::get_if<TRequest*>(&Storage_)) {
+                serviceConnection->DoAdvancedRequest(**ptr, 
+                    std::move(responseCbLow), rpc, meta, context);
+            } else {
+                serviceConnection->DoAdvancedRequest(std::move(std::get<TRequest>(Storage_)), 
+                    std::move(responseCbLow), rpc, meta, context);
+            }
+        }
+
+    private:
+        std::variant<TRequest*, TRequest> Storage_;
+    };
+
     template<typename TService, typename TRequest, typename TResponse>
     void Run(
-        TRequest&& request,
+        TRequestWrapper<TRequest>&& requestWrapper,
         TResponseCb<TResponse>&& userResponseCb,
         TSimpleRpc<TService, TRequest, TResponse> rpc,
         TDbDriverStatePtr dbState,
@@ -174,7 +220,8 @@ class TGRpcConnectionsImpl
         }
 
         WithServiceConnection<TService>(
-            [this, request = std::move(request), userResponseCb = std::move(userResponseCb), rpc, requestSettings, context = std::move(context), dbState]
+            [this, requestWrapper = std::move(requestWrapper), userResponseCb = std::move(userResponseCb), rpc, 
+             requestSettings, context = std::move(context), dbState]
             (TPlainStatus status, TConnection serviceConnection, TEndpointKey endpoint) mutable -> void {
                 if (!status.Ok()) {
                     userResponseCb(
@@ -271,14 +318,13 @@ class TGRpcConnectionsImpl
                         }
                     };
 
-                serviceConnection->DoAdvancedRequest(std::move(request), std::move(responseCbLow), rpc, meta,
-                    context.get());
+                requestWrapper.DoRequest(serviceConnection, std::move(responseCbLow), rpc, meta, context.get());
             }, dbState, requestSettings.PreferredEndpoint, requestSettings.EndpointPolicy);
     }
 
     template<typename TService, typename TRequest, typename TResponse>
     void RunDeferred(
-        TRequest&& request,
+        TRequestWrapper<TRequest>&& requestWrapper,
         TDeferredOperationCb&& userResponseCb,
         TSimpleRpc<TService, TRequest, TResponse> rpc,
         TDbDriverStatePtr dbState,
@@ -321,7 +367,7 @@ class TGRpcConnectionsImpl
         };
 
         Run<TService, TRequest, TResponse>(
-            std::move(request),
+            std::move(requestWrapper),
             responseCb,
             rpc,
             dbState,
@@ -357,7 +403,7 @@ class TGRpcConnectionsImpl
 
     template<typename TService, typename TRequest, typename TResponse>
     void RunDeferred(
-        TRequest&& request,
+        TRequestWrapper<TRequest>&& requestWrapper,
         TDeferredResultCb&& userResponseCb,
         TSimpleRpc<TService, TRequest, TResponse> rpc,
         TDbDriverStatePtr dbState,
@@ -375,7 +421,7 @@ class TGRpcConnectionsImpl
         };
 
         RunDeferred<TService, TRequest, TResponse>(
-            std::move(request),
+            std::move(requestWrapper),
             operationCb,
             rpc,
             dbState,
diff --git a/ydb/public/sdk/cpp/src/client/impl/ydb_internal/make_request/make.h b/ydb/public/sdk/cpp/src/client/impl/ydb_internal/make_request/make.h
index d8dd35dbe6b7..742e6a8a53e0 100644
--- a/ydb/public/sdk/cpp/src/client/impl/ydb_internal/make_request/make.h
+++ b/ydb/public/sdk/cpp/src/client/impl/ydb_internal/make_request/make.h
@@ -46,4 +46,18 @@ TProtoRequest MakeOperationRequest(const TRequestSettings& settings) {
     return request;
 }
 
+
+template <typename TProtoRequest>
+TProtoRequest* MakeRequestOnArena(google::protobuf::Arena* arena) {
+    return google::protobuf::Arena::CreateMessage<TProtoRequest>(arena);
+}
+
+template <typename TProtoRequest, typename TRequestSettings>
+TProtoRequest* MakeOperationRequestOnArena(const TRequestSettings& settings, google::protobuf::Arena* arena) {
+    Y_ASSERT(arena != nullptr);
+    auto request = MakeRequestOnArena<TProtoRequest>(arena);
+    FillOperationParams(settings, *request);
+    return request;
+}
+
 } // namespace NYdb
diff --git a/ydb/public/sdk/cpp/src/client/table/impl/table_client.cpp b/ydb/public/sdk/cpp/src/client/table/impl/table_client.cpp
index 163c7a477ee8..160c3cf0b225 100644
--- a/ydb/public/sdk/cpp/src/client/table/impl/table_client.cpp
+++ b/ydb/public/sdk/cpp/src/client/table/impl/table_client.cpp
@@ -990,33 +990,49 @@ void TTableClient::TImpl::SetStatCollector(const NSdkStats::TStatCollector::TCli
 }
 
 TAsyncBulkUpsertResult TTableClient::TImpl::BulkUpsert(const std::string& table, TValue&& rows, const TBulkUpsertSettings& settings, bool canMove) {
-    auto request = MakeOperationRequest<Ydb::Table::BulkUpsertRequest>(settings);
-    request.set_table(TStringType{table});
+    Ydb::Table::BulkUpsertRequest* request = nullptr;
+    std::unique_ptr<Ydb::Table::BulkUpsertRequest> holder;
+
+    if (settings.Arena_) {
+        request = MakeOperationRequestOnArena<Ydb::Table::BulkUpsertRequest>(settings, settings.Arena_);
+    } else {
+        holder = std::make_unique<Ydb::Table::BulkUpsertRequest>(MakeOperationRequest<Ydb::Table::BulkUpsertRequest>(settings));
+        request = holder.get();
+    }
+
+    request->set_table(TStringType{table});
     if (canMove) {
-        request.mutable_rows()->mutable_type()->Swap(&rows.GetType().GetProto());
-        request.mutable_rows()->mutable_value()->Swap(&rows.GetProto());
+        request->mutable_rows()->mutable_type()->Swap(&rows.GetType().GetProto());
+        request->mutable_rows()->mutable_value()->Swap(&rows.GetProto());
     } else {
-        *request.mutable_rows()->mutable_type() = TProtoAccessor::GetProto(rows.GetType());
-        *request.mutable_rows()->mutable_value() = rows.GetProto();
+        *request->mutable_rows()->mutable_type() = TProtoAccessor::GetProto(rows.GetType());
+        *request->mutable_rows()->mutable_value() = rows.GetProto();
     }
 
     auto promise = NewPromise<TBulkUpsertResult>();
+    auto extractor = [promise](google::protobuf::Any* any, TPlainStatus status) mutable {
+        Y_UNUSED(any);
+        TBulkUpsertResult val(TStatus(std::move(status)));
+        promise.SetValue(std::move(val));
+    };
 
-    auto extractor = [promise]
-        (google::protobuf::Any* any, TPlainStatus status) mutable {
-            Y_UNUSED(any);
-            TBulkUpsertResult val(TStatus(std::move(status)));
-            promise.SetValue(std::move(val));
-        };
-
-    Connections_->RunDeferred<Ydb::Table::V1::TableService, Ydb::Table::BulkUpsertRequest, Ydb::Table::BulkUpsertResponse>(
-        std::move(request),
-        extractor,
-        &Ydb::Table::V1::TableService::Stub::AsyncBulkUpsert,
-        DbDriverState_,
-        INITIAL_DEFERRED_CALL_DELAY,
-        TRpcRequestSettings::Make(settings));
-
+    if (settings.Arena_) {
+        Connections_->RunDeferred<Ydb::Table::V1::TableService, Ydb::Table::BulkUpsertRequest, Ydb::Table::BulkUpsertResponse>(
+            request,
+            extractor,
+            &Ydb::Table::V1::TableService::Stub::AsyncBulkUpsert,
+            DbDriverState_,
+            INITIAL_DEFERRED_CALL_DELAY,
+            TRpcRequestSettings::Make(settings));
+    } else {
+        Connections_->RunDeferred<Ydb::Table::V1::TableService, Ydb::Table::BulkUpsertRequest, Ydb::Table::BulkUpsertResponse>(
+            std::move(*holder),
+            extractor,
+            &Ydb::Table::V1::TableService::Stub::AsyncBulkUpsert,
+            DbDriverState_,
+            INITIAL_DEFERRED_CALL_DELAY,
+            TRpcRequestSettings::Make(settings));
+    }
     return promise.GetFuture();
 }
 
diff --git a/ydb/public/sdk/cpp/src/client/value/value.cpp b/ydb/public/sdk/cpp/src/client/value/value.cpp
index 2516f3a42264..47ae325b35ff 100644
--- a/ydb/public/sdk/cpp/src/client/value/value.cpp
+++ b/ydb/public/sdk/cpp/src/client/value/value.cpp
@@ -1046,14 +1046,31 @@ class TValue::TImpl {
 public:
     TImpl(const TType& type, const Ydb::Value& valueProto)
         : Type_(type)
-        , ProtoValue_(valueProto) {}
+        , ProtoValue_(valueProto)
+        , ArenaAllocatedValueProto_(nullptr) {}
 
     TImpl(const TType& type, Ydb::Value&& valueProto)
         : Type_(type)
-        , ProtoValue_(std::move(valueProto)) {}
+        , ProtoValue_(std::move(valueProto))
+        , ArenaAllocatedValueProto_(nullptr) {}
+
+    TImpl(const TType& type, Ydb::Value* arenaAllocatedValueProto)
+        : Type_(type)
+        , ProtoValue_{}
+        , ArenaAllocatedValueProto_(arenaAllocatedValueProto) {}
+
+    const Ydb::Value& GetProto() const {
+        return ArenaAllocatedValueProto_ ? *ArenaAllocatedValueProto_ : ProtoValue_;
+    }
+
+    Ydb::Value& GetProto() {
+        return ArenaAllocatedValueProto_ ? *ArenaAllocatedValueProto_ : ProtoValue_;
+    }
 
     TType Type_;
+private:
     Ydb::Value ProtoValue_;
+    Ydb::Value* ArenaAllocatedValueProto_;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -1064,6 +1081,9 @@ TValue::TValue(const TType& type, const Ydb::Value& valueProto)
 TValue::TValue(const TType& type, Ydb::Value&& valueProto)
     : Impl_(new TImpl(type, std::move(valueProto))) {}
 
+TValue::TValue(const TType& type, Ydb::Value* arenaAllocatedValueProto)
+    : Impl_(new TImpl(type, arenaAllocatedValueProto)) {}
+
 const TType& TValue::GetType() const {
     return Impl_->Type_;
 }
@@ -1073,11 +1093,11 @@ TType & TValue::GetType() {
 }
 
 const Ydb::Value& TValue::GetProto() const {
-    return Impl_->ProtoValue_;
+    return Impl_->GetProto();
 }
 
 Ydb::Value& TValue::GetProto() {
-    return Impl_->ProtoValue_;
+    return Impl_->GetProto();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -1104,7 +1124,7 @@ class TValueParser::TImpl {
         : Value_(value.Impl_)
         , TypeParser_(value.GetType())
     {
-        Reset(Value_->ProtoValue_);
+        Reset(Value_->GetProto());
     }
 
     TImpl(const TType& type)
@@ -2781,7 +2801,6 @@ class TValueBuilderImpl {
     }
 
 private:
-
     //TTypeBuilder TypeBuilder_;
     TTypeBuilder::TImpl TypeBuilder_;
     Ydb::Value ProtoValue_;