Describes the cause and action for error messages.
Error Message(English)：
unable to unhide columns
Unhiding Column A : excel - Reddit
https://www.reddit.com/r/excel/comments/aj01mf/unhiding_column_a/
I am opening excell 97 file in libre. unable to unhide columns ...
https://ask.libreoffice.org/en/question/32243/i-am-opening-excell-97-file-in-libre-unable-to-unhide-・・・
Unable to unhide hidden columns | PC Review
https://www.pcreview.co.uk/threads/unable-to-unhide-hidden-columns.3591040/
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