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Linux is becoming more appealing for gamers – here's why
(www.notebookcheck.net)
A community for everything relating to the GNU/Linux operating system (except the memes!)
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Yes, but there are some Excel formulas that LibreOffice can't do and while there is now some VBA compatibility its not 100%
https://wiki.documentfoundation.org/Feature_Comparison:_LibreOffice_-_Microsoft_Office#Desktop_Spreadsheet_applications:_LibreOffice_Calc_vs._Microsoft_Excel