Created attachment 73657 [details]
screnshot - Table lost the width borders when save as XLSX
Steps to reproduce:
1. open existing file XLSX created in MS Office
2. save this file in the new location again as XLSX
3. now open this new file and look - table lost the width borders. New borders are more wider. Save file and again open, and you again see - borders are more more wider.
Table lost the width borders when save as XLSX.
Table don't lost the width borders when save as XLSX.
Sory for my English. I don't know him.
Operating System: Windows 8
Version: 18.104.22.168 rc
Created attachment 73694 [details]
Table lost the width borders when save as XLSX- the source file
Created attachment 73697 [details]
Table lost the width borders when save as XLSX- the source file2
Thanks for reporting!
I can reproduce this behavior using Linux Mint 14 x64 with LibreOffice Version 22.214.171.124 .0.2 (Build id: 408fe71bd18616c467b3dcd7ab6756528ffcae2) and latest master Version 126.96.36.199.alpha0+ (Build ID: f1bca26afcc7593d0124c216c0400a9e2e47fc1)
Following to our flowchart  I mark this bug with priority 'normal' and 'medium' because this document doesn't resolve in a crash/data loss, but do prevent you to make high quality work.
*** This bug has been marked as a duplicate of bug 52578 ***