Created attachment 54119 [details] Goods.xls Spreadsheet damage xls document. After saving it and opening again I can see only question marks. Steps: 1. Open Goods.xls 2. Change something and save it. 3. Close document. 4. Open it again. Text's language is Ukrainian.
I found similar bug: https://bugs.freedesktop.org/show_bug.cgi?id=33100 Maybe it will help you.
*** This bug has been marked as a duplicate of bug 39587 ***