Posted 8 September 2017, 2:31 pm EST
I have a problem when I save my spread in the extension .xlsx. The excel file is created but i can't open it with excel 2007.
I have a error message which explain that the extension or the format of my file is not valide.
If I save my spread with the extension .xls, I have no problem to open it with excel 2007.
Have you any idea?