I have a web application that generate Excel Spreadsheets with formulas, colors and formatting.
If the XLS generated by the application is opened from an Office 2013, we randomly loose the formatting (and colors) in the middle of the page. (It starts corrently but at some point, the formatting seems to stops for an entire column or two).
It works well with Office 2010 so it looks like there is some sort of imcompatibility issue.
Note. I'm using coldfusion 9