File Content Extraction 26.2
Filter SDK .NET Programming Guide

# Hidden Text - Microsoft Excel

Normally, Filter does not filter hidden text from a Microsoft Excel spreadsheet because it is assumed the text should not be exposed. You can change this default behavior, and extract text from hidden rows, columns, and sheets from Excel spreadsheets by adding the following lines to the `formats.ini` file:

    [Options]
    gethiddeninfo=1

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Version 26.2 | Last updated April 2026

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Product: File Content Extraction 26.2

Topic Title: Hidden Text - Microsoft Excel