When I save my LibreOffice Calc file to Exel format it won't open correctly when opened in Excel. All of the cell information and text and any formatting goes away and it is one big mass of cell information.
I've tried to save in all formats of Excel with no luck.
I did see that they did have issues with saving to a windows file, either .doc or .xl or .xls and the bug was being worked on (as recently as late 2012
I'm using LibreOffice 184.108.40.206. and Ubuntu 12.04 LTS