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Rendering table headings of XLSX as HTML not working for hidden columns in .NET

Rendering table heading of XLSX does not work properly for hidden cells.
GroupDocs.Viewer version 21.4.1 with those options was used:

options.SpreadsheetOptions = GroupDocs.Viewer.Options.SpreadsheetOptions.ForOnePagePerSheet();
options.SpreadsheetOptions.RenderGridLines = true;
options.SpreadsheetOptions.RenderHeadings = true;

hidden table header.zip (9.4 KB)

Column C is hidden and row 5 is hidden.
The values of column C are not rendered, which is correct, but the table heading “C” is still visible.

For rows it works. The data of row 5 is hidden, as well as the table heading “5”.

@Clemens_Pestuka

Thank you for providing options that you’re using, source and output files. We’ve reproduced this issue and and logged it in our bug-tracker with ID VIEWERNET-3284. You’ll be notified on any updates.

@vladimir.litvinchik

Perfect, thank you. :+1:

@Clemens_Pestuka

You’re welcome!

@Clemens_Pestuka

GroupDocs.Viewer for .NET v21.6 that includes fix for this issue has been published. You can find the new version at

Have a nice day!