Bump DocumentFormat.OpenXml from 3.1.0 to 3.5.1

[dependabot]

Updated DocumentFormat.OpenXml from 3.1.0 to 3.5.1.

Release notes

Sourced from DocumentFormat.OpenXml's releases.

3.5.1

Added

• Added DocumentFormat.OpenXml.Office2016.Drawing.ChartDrawing.Offset class
• Added Version attribute to DocumentFormat.OpenXml.Office2016.Drawing.ChartDrawing.ChartSpace
• Added FeatureList attribute to DocumentFormat.OpenXml.Office2016.Drawing.ChartDrawing.ChartSpace
• Added FalbackImg attribute to DocumentFormat.OpenXml.Office2016.Drawing.ChartDrawing.ChartSpace
• Added DocumentFormat.OpenXml.Office2016.Drawing.ChartDrawing.ExtensionDropMode enum

3.4.1

Added

• Added MediaDataPartType.Mp4 to support MP4 video media parts in presentations and documents (#​1866)
• Updated bundled Open XML schemas to the Q3 2025 Office release, enabling newer document and presentation features (#​1963)

Changed

• Reduced JIT and AOT size and improved document load performance by removing the generic builder pattern from element metadata creation (#​1842, #​1843)
• Optimized FromChunkedBase64String to significantly reduce allocations and improve throughput when decoding chunked base64 content (≈2.4× faster, ≈70% less memory) (#​1868)

Fixed

• Switched to XmlDOMTextWriter instead of XmlWriter.Create to correctly handle serialization of certain XML content (#​1869, #​1961)
• Added a clear error when attempting to open encrypted documents that the SDK cannot process (#​1635, #​1969)
• Improved exception messages when required package parts are missing by including the name of the missing part (#​1971, #​1974)

Documentation

• Clarified the README SDK description and simplified the note on 3.0.0 breaking changes (#​1858)
• Documented that disposing a package with AutoSave set to false does not persist changes (#​1873)
• Removed the PowerPoint modern comments sample, which now lives on learn.microsoft.com (#​1861)

Thanks to the following for their contributions:

@​QuocDatHoang
@​Varorbc

3.3.0

Added

• Added DocumentFormat.OpenXml.Office.SpreadSheetML.Y2024.WorkbookCompatibilityVersion namespace

Fixed

• Performance of .ToFlatOpc(...) has been greatly improved for large parts (#​1863)

Thanks to the following for their contributions:

@​QuocDatHoang

3.2.0

Added

• Added DocumentFormat.OpenXml.Office.SpreadSheetML.Y2022.PivotRichData namespace
• Added DocumentFormat.OpenXml.Office.SpreadSheetML.Y2024.PivotDynamicArrays namespace

Changed

• Updated Nuget badge on README

Fixed

• Fixed issue where a disposed object (DeflateStream) cannot be accessed after recovering from malformed url (#​1802)
• Fixed issue with relationships not being created when cloning Flat OPC (#​1814)
• Fixed issue with corrupt files remaining locked after attempting to open with WordprocessingDocument.Open (#​1681)
• Fixed issue with changes not applied after .Save() (#​1771)
• Fixed AddWorkbookPart throws exception if no main part is available (#​1745)
• Fixed issue with base classes not included with LINQ generation (#​1838)

Thanks to the following for their contributions:

@​WeihanLi

3.1.1

Fixed

• Updated System.IO.Packaging and other dependencies (#​1794, #​1795, #​1796, #​1782, #​1808)
• Fixed add c16:uniqueId to several chart complex types (#​1762)
• Fixed rather than in the documentation comments (#​1775)

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