@Gina Microsofts usability is shit on every conceivable level.
@Gina yea that explains away linux (though id argue they shouldnt even be using microsoft formats to begin with. If you ban microsoft from use then those compatibility issues go away).
That said if Mac were used then that wouldnt be an issue as there is a version of office and other products for mac anyway.
@freemo because of business applications like MS Office and Adobe Acrobat and Photoshop, unfortunately. That was the biggest hurdle at the previous #foss place I worked at; documents getting borked because of compatibility issues between Msft Office and LibreOffice.