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ExcelDataReader.DataSet

3.9.079M downloads/moExcelDataReader/ExcelDataReader ↗New releases in your daily digest, changelog included.

ExcelDataReader extension for reading Microsoft Excel files into System.Data.DataSet.

Last release 3 months ago
16 Jun 2026
Ships unpredictably
gaps range from 9 days to 10 months
Some releases are documented
notes for 3 of 12 stable releases
Nothing withdrawn
no release was ever pulled
9 years old
27 releases · first in 2017

Release timeline

27 releases since 2017

2017201920212023

Releases

3.9.016 Jun 2026
Add support for reading XLM (Macro Sheet) files by @hughbe in #724
What's Changed

Add support for reading XLM (Macro Sheet) files by @hughbe in #724

Added CaseSentitive to ExcelDataTableConfiguration. by @kevin-frugier in #732

Add a DataTable Configuration for allows fill the empty cells in merged range to fill by left-top cell value by @Flithor in #730

Add locale-aware overload for GetNumberFormatString… by @appel1

Fix locale-specific built-in number format indices (27-81) not detect… by @appel1 in #736

Make clipboard selection dimension properties available by @Sebastian-roko in #720

Add single-pass mode for better performance if you don't need actual field count by @appel1 in #738

Throw more explicit errors for corrupt files by @appel1 in #739

Add opt-in EscapeChar support for backslash-escaped CSV quoted fields by @appel1 in #743

Fix builtin time format locale by @appel1 in #744

Allow 0xFEFF as byte order in compound document header (#695) by @appel1 in #746

Fix MergeCells returning null for XLS files without merged cells by @appel1 in #747

Treat XLS BOOLERR cells as non-empty by @appel1 in #754

New Contributors

@hughbe made their first contribution in #723

@kevin-frugier made their first contribution in #732

@Flithor made their first contribution in #730

@Sebastian-roko made their first contribution in #720

Full Changelog: v3.8.0...v3.9.0

From the same repository

ExcelDataReader/ExcelDataReader

ExcelDataReaderNuGetLightweight and fast library written in C# for reading Microsoft Excel files (XLS, XLSX).

3.9.0-rc14 Jun 2026pre-release

Add opt-in EscapeChar support for backslash-escaped CSV quoted fields by @appel1 in #743

What's Changed

Add opt-in EscapeChar support for backslash-escaped CSV quoted fields by @appel1 in #743
Fix builtin time format locale by @appel1 in #744
Allow 0xFEFF as byte order in compound document header (#695) by @appel1 in #746
Fix MergeCells returning null for XLS files without merged cells by @appel1 in #747

Full Changelog: v3.9.0-develop00574...v3.9.0-rc1

Open source →

3.9.0-develop0056530 Apr 2026pre-release

Fix build and tests on mac by @hughbe in #723

What's Changed

Fix build and tests on mac by @hughbe in #723
Add support for reading XLM (Macro Sheet) files by @hughbe in #724
Added CaseSentitive to ExcelDataTableConfiguration. by @kevin-frugier in #732
Add a DataTable Configuration for allows fill the empty cells in merged range to fill by left-top cell value by @Flithor in #730
Add Culture configuration option to return locale-aware format string… by @appel1 in #737
Fix locale-specific built-in number format indices (27-81) not detect… by @appel1 in #736
Make clipboard selection dimension properties available by @Sebastian-roko in #720
Add single-pass mode and reduce allocations 28–56% by @appel1 in #738
Throw more explicit errors for corrupt files by @appel1 in #739

New Contributors

@hughbe made their first contribution in #723
@kevin-frugier made their first contribution in #732
@Flithor made their first contribution in #730
@Sebastian-roko made their first contribution in #720

Full Changelog: v3.8.0...v3.9.0-develop00565

Open source →

3.8.021 Sept 2025

Issue #642 : Active Tab/Sheet Support by @john-blackline in #685

What's Changed

New features

Issue #642: Active Tab/Sheet Support by @john-blackline in #685
Add CustomQuoteCharacter for reading csv files by @christopherGdynia in #689
Config property to control trimming whitespaces in CSV parser by @Hasan-75 in #696
Performance improvements

Fixes

Use LocalName instead of Name to fix #682 by @appel1 in #683
Fix for lower case cell reference reading ("a1" vs "A1"). by @Ctrl-Alt-Delight in #684
Issue #700: Fixed parsing of horizontal alignment in XmlStylesReader by @msjoblad in #702
Fixed TimSpan Parsing by @Hasan-75 in #697
Issue 694: Fix timespan parsing for invalid iso values by @yfa-vagelis in #705
Fix: Preserve ideographic space (U+3000) when trimming XML cell content by @koshi-yasuda in #712
Issue 711: Fix xml row height parsing by @yfa-vagelis in #715

New Contributors

@arialdomartini made their first contribution in #679
@Ctrl-Alt-Delight made their first contribution in #684
@john-blackline made their first contribution in #685
@christopherGdynia made their first contribution in #689
@msjoblad made their first contribution in #702
@Hasan-75 made their first contribution in #697
@yfa-vagelis made their first contribution in #705
@koshi-yasuda made their first contribution in #712

Full Changelog: v3.7.0...v3.8.0

Open source →

3.8.0-develop004884 Jun 2025pre-release

What's Changed since v3.8.0-develop00474

Issue 694: Fix timespan parsing for invalid iso values by @yfa-vagelis in #705
Fix reading encrypted .xls files in netstandard 2.1 target in d8b5fe7
Read vertical alignment in 6408300
Performance improvements

New Contributors

@yfa-vagelis made their first contribution in #705

Full Changelog: v3.8.0-develop00474...v3.8.0-develop00488

Open source →

3.8.0-develop0047421 Apr 2025pre-release

Highlights in ExcelDataReader v3.8.0-develop00474 since 3.7.0:

Active Tab/Sheet Support by @john-blackline in #685
Add CustomQuoteCharacter for reading csv files by @christopherGdynia in #689
Config property to control trimming whitespaces in CSV parser by @Hasan-75 in #696
Bugfix: Use LocalName instead of Name to fix #682 by @appel1 in #683
Bugfix: Fix for lower case cell reference reading ("a1" vs "A1") by @Ctrl-Alt-Delight in #684
Bugfix: Fixed parsing of horizontal alignment by @msjoblad in #702
Bugfix: Fixed TimSpan parsing by @Hasan-75 in #697
Performance improvements

Open source →

3.7.022 Jun 2024Breaking

Handle the partial-byte-reads-in-stream breaking change in .NET6 by @PanosKousidis in #645

What's Changed

New features

Support .xlsb files by @appel1 in #444
Read Strict Open XML Excel files by @monikalaks in #531
Implement GetValues(object[] values), fix issue 578. by @Andreybonfi in #644
Allow user defined ReadHeader method to control DataTable column… by @jgilbert2017 in #577

Fixes

More extensive support for XF records; expose cell styles by @andersnm in #430
Ignore FORMAT records with a duplicate Index. by @appel1 in #419
Fix GetCellStyle for .xls files in some cases by @appel1 in #439
Handle duplicate number format records by using the first one. by @appel1 in #455
Null check for GetCellError() by @RRobbins94 in #485
Ignore trailing columns. by @appel1 in #533
Fix for parsing worksheet column without "width" attribute. by @mathias-ho in #610
Remove allocation in ReferenceHelper.ParseReference by @OwnageIsMagic in #617
Resolve paths from .rels file instead of assuming most things are in … by @appel1 in #638
Handle the partial-byte-reads-in-stream breaking change in .NET6 by @PanosKousidis in #645
Assorted refactorings and optimizations: by @Lehonti in #640
Handle both 1 and true values when parsing the date1904 attribute by @eJJonatah in #650
Prefer separator with more fields if there are more than one separato… by @appel1 in #671

New Contributors

@RRobbins94 made their first contribution in #485
@mathias-ho made their first contribution in #610
@OwnageIsMagic made their first contribution in #617
@monikalaks made their first contribution in #531
@PanosKousidis made their first contribution in #645
@Lehonti made their first contribution in #640
@skarth1k made their first contribution in #667
@Andreybonfi made their first contribution in #644
@IgorMenshikov made their first contribution in #656
@jgilbert2017 made their first contribution in #577
@eJJonatah made their first contribution in #650

Full Changelog: v3.6.0...v3.7.0

Open source →