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Does OpenXML SDK have official benchmark comparsion between different versions?

Status: Open.

#2053 In dotnet/Open-XML-SDK;

· tonyqus opened on Mar 31, 2026

Feature request for Open XML SDK

Status: Open.

#2048 In dotnet/Open-XML-SDK;

· alomakin-msft opened on Mar 26, 2026

Consider dropping legacy frameworks

Status: Open.

#2046 In dotnet/Open-XML-SDK;

· SimonCropp opened on Mar 22, 2026

BUG：BiLevel.Threshold

Status: Open.

#2007 In dotnet/Open-XML-SDK;

· waydalee opened on Feb 10, 2026

API Proposal: Formula Evaluation Feature

Status: Open.

#1973 In dotnet/Open-XML-SDK;

· mliotta opened on Nov 13, 2025

"Specified part does not exist in the package." exception thrown when calling DeletePart()

more-information-needed

Status: Open.

#1968 In dotnet/Open-XML-SDK;

· mlucero-isw opened on Oct 29, 2025

Use specialized URI type for package spec that is more relaxed than System.Uri

Status: Open.

#1965 In dotnet/Open-XML-SDK;

· twsouthwick opened on Sep 29, 2025

Malformed URIs are not rewritten

Status: Open.

#1962 In dotnet/Open-XML-SDK;

· larrygoldupslide opened on Sep 11, 2025

commentParts should have a capitol C

breaking-change

bug

Status: Open.

Bug

#1958 In dotnet/Open-XML-SDK;

· mikeebowen opened on Aug 8, 2025

·  

v4.0

Bug Report: System.OutOfMemoryException when writing large Excel file

bug

Status: Open.

#1951 In dotnet/Open-XML-SDK;

· sw-ms-hardiksenghani opened on Jul 1, 2025

Remove PivotCacheDynamicArray class

breaking-change

Status: Open.

#1945 In dotnet/Open-XML-SDK;

· mikeebowen opened on Jun 24, 2025

·  

v4.0

Add Feature Extension and List for CT_CustomSheetView and CT_SheetView

breaking-change

Status: Open.

#1943 In dotnet/Open-XML-SDK;

· mikeebowen opened on Jun 24, 2025

·  

v4.0