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Community Blog Excelize 2.10.0 Released - Powerful open-source library for spreadsheet (Excel) document

Excelize 2.10.0 Released - Powerful open-source library for spreadsheet (Excel) document

Excelize is a pure Go language spreadsheet library Excelize. Support reading and writing XLAM / XLSM / XLSX / XLTM / XLTX spreadsheets.

Excelize 2.10.0 Released - Powerful open-source library for spreadsheet (Excel) document

Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components by high compatibility, and provided streaming API for generating or reading data from a worksheet with huge amounts of data.

GitHub: github.com/xuri/excelize

The open-source community announce the release of version 2.10.0 on October 14, 2025. Featured are a handful of new areas of functionality and numerous bug fixes.

Release Notes

The most notable changes in this release are:

Breaking Change

  • Upgrade requirements Go language version is 1.24.0 or later, for upgrade of dependency package golang.org/x/crypto

Notable Features

  • Add new exported error variable ErrTransparency
  • Add new ChartDashType, CustomProperty and ZipWriter data types
  • Add new field Border to the ChartMarker data type
  • Add new field Font to the ChartLegend data type
  • Add new field Legend to the ChartSeries data type
  • Add new field Transparency to the Fill data type
  • Add new fields Dash and Fill to the ChartLine data type
  • Add new field TmpDir to the Options data type, support to specifies the custom temporary directory for creating temporary files, related issue 2024
  • Add new field Charset to the Font data type, support to explicitly specify font encodings when generating spreadsheets
  • Add new functions GetCustomProps and SetCustomProps support getting and setting workbook custom properties, related issue 2146
  • Add new function SetZipWriter, support set custom ZIP writer, related issue 2199
  • Add optional parameter withoutValues for the GetMergeCells function
  • The DeleteDataValidation function support delete data validation in extension list, and support delete data validation by given with multiple cell ranges with reference sequence slice or blank separated reference sequence string, related issue 2133
  • The AddChart function support set dash line and marker border type of charts
  • The AddChart function support to set font for chart legends, related issue 2169
  • The AddChart and AddChartSheet function support create 4 kinds of box and whisker stock charts: High-Low-Close, Open-High-Low-Close, Volume-High-Low-Close and Volume-Open-High-Low-Close
  • The CalcCellValue function support BAHTTEXT formula function
  • Skip fallback to default font size when create style if font size less than minimum size
  • Support parse number format code with Hijri and Gregorian calendar
  • Support set transparency for chart and shape, related issue 2176
  • Support apply number format with the new 8 language: Corsican, Croatian, Croatian (Latin), Czech, Danish, Divehi, Dutch, Dzongkha language

Improve the Compatibility

  • Remove all leading equal symbol when set cell formula, for improve compatibility with Apple Numbers, related issue 2145
  • Using relative sheet target path in the internal workbook relationship parts

Bug Fixes

  • Fix a v2.9.1 regression bug, build failed on ARMv7 architectures, resolve issue 2132
  • Fix number format parser dropped empty literals in the end of the number format
  • Fix panic on get string item with invalid offset range, resolve issues 2019 and 2150
  • Fix panic on read unsupported pivot table cache sorce types, resolve issue 2161
  • Fix incorrect characters verification, count characters as single runes in characters length limitation checking, resolve issue 2167
  • Fix add pivot table caused workbook corrupted on Excel for Mac, resolve issue 2180
  • Fix incorrect month name abbreviations when read cell with the Tibetan language number format code
  • Fix special date number format result not consistent with Excel, resolve issue 2192

Performance

  • Optimize the GetSheetDimension function by parse worksheet XML in stream mode, speedup about 95%, memory usage reduce about 96%

Miscellaneous

  • The dependencies module has been updated
  • Unit tests and godoc updated
  • Documentation website with multilingual: Arabic, German, English, Spanish, French, Italian, Japanese, Korean, Portuguese, Russian, Chinese Simplified and Chinese Traditional, which has been updated.
  • excelize-wasm NPM package release update for WebAssembly / JavaScript support
  • excelize PyPI package release update for Python
  • ExcelizeCs NuGet .Net package release for C#
  • Add a new logo for Excelize

Thank you

Thanks for all the contributors to Excelize. Below is a list of contributors that have code contributions in this version:

  • DengY11 (Yi Deng)
  • JerryLuo-2005
  • aliavd1 (Ali Vatandoost)
  • xiaoq898
  • Now-Shimmer
  • Jameshu0513
  • mengpromax (MengZhongYuan)
  • Leopard31415926
  • hongjr03 (Hong Jiarong)
  • juefeng
  • black-butler
  • Neugls
  • Leo012345678
  • a2659802
  • torotake
  • crush-wu
  • zhuyanhuazhuyanhua
  • shcabin
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