[Libreoffice-bugs] [Bug 134769] XLSX file saved in LibreOffice 7 is corrupted and it is later not possible to open in Excel

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=134769

--- Comment #3 from Martin Hodek <emailprohlasenichyb at seznam.cz> ---
I have rather complicated excel file that works as a questionnaire. The file is
designed in excel, because it is sent to companies that predominantly use MS
Office. But I also test it in Libre Office and Documents Google. The file
worked well in the previous version of Libre Office (6.3 and 6.4). The only
problem was that checkboxes disappeared after saving the file, but that was no
problem, because information from these boxes was stored in connected cells.
In LibreOffice 7 it is possible to open the document and to edit it, but after
saving it, MS Excel (tested in 2019 and 365) deems it corrupted. It offers
automatic repair, but after doing so, the file appears to be empty. LibreOffice
opens the file with no problem at all.
The file is rather complicated, it does not use macros, but apart from that it
contains:
List “dotazník” – questionnaire itself
List “vyhledávač CZ ISCO – simple “search engine” that finds possible
systematization of jobs based on word written into orange cell (try “referent”
for example)
List “zdroj dat” – set up of the file and logic check of replies written in the
questionnaire (warnings in cells with yellow background).
Another 15 hidden lists – source of data (companies and regions)

I thank you in advance for your reply and help.
Best regards,

Martin Hodek

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