LibreOffice
Different way of workingFreeCalc makes pivot tables and charts from a spreadsheet. Useful for a straightforward report, not a replacement for Tableau.
Your files: Opens .xlsx and CSV exports. It cannot open a .twb or .twbx workbook.
Does Tableau Desktop run on Linux?
Verdict: No
No. Tableau says Desktop installs on a Windows computer or a Mac, and there is no Linux version. Published workbooks can still be viewed in a browser through Tableau Server or Tableau Cloud.
Tableau's own deployment guide says Tableau Desktop, Tableau Prep Builder, Tableau Reader and Tableau Public install on a Windows computer or a Mac computer. Linux is not an option for any of them.
If your work is looking at dashboards other people built, you are fine. Tableau Server and Tableau Cloud show published workbooks in a web browser, and that works on Linux like anywhere else. You can filter, drill down, subscribe to a dashboard and download the underlying data.
Building workbooks is what does not move. A .twb or .twbx file cannot be opened by anything on Linux, and Tableau Public's editor is the desktop program too. If authoring is your job, you need a Windows or Mac machine, or a Windows virtual machine running on your Linux computer, which means buying a Windows licence.
There is no free Linux program that stands in for Tableau. Spreadsheet charts cover a simple monthly report and nothing more, so do not plan a switch around the idea that something will fill the gap.
What to use instead of Tableau Desktop
This doesn't have to stop you
One stubborn program doesn't have to decide the whole question. You can keep Windows on the same PC and restart into it only when you need Tableau Desktop. Everything else you do can move.
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