When I open an XLSX file the borders are much thicker than they should be.
Looking at the cell formatting the border width has been set to 4.0pt, if I go through and reset them all back to something normal like 1.0pt, save, close and reopen they revert straight back to 4.0pt.
This is almost forcing me to give up on LibreOffice as a lot of work spreadsheets are sent in xlsx format and I'm unable to edit them and send back without ruining the formatting.
Hi Chris, it's already known issue that seems to be fixed regarding Bug 56960. But currently it's only available on ver 4.1.0 RC2 (if I'm not wrong).
Perhaps you could try that version & report your result on that bug?
*** This bug has been marked as a duplicate of bug 56960 ***
Sorry I forgot, increment increase with border after saving, closing, & reopening reported on Bug 52578 (still in progress).