CodeWeavers reports
Gone are [...] the days that we hopelessly tried to register Microsoft Office 2013. You read that right, people. [On November 2], we successfully registered Microsoft Office 2013 in a CrossOver 16 alpha build. We [can] also:
- Open, create, edit, save, and print Microsoft office documents
- Activate a copy of Microsoft Office 2013 [with a] product key or a 365 subscription
- Use Word, Excel, PowerPoint, and Project
"Everyone at CodeWeavers is incredibly excited to see Microsoft Office 2013 installing, registering, and running in CrossOver. After four years of continued development, we are preparing to deliver support for the 2013 versions of Word, Excel, PowerPoint, and Project in CrossOver 16 (due out later this year). And we hope that our development will continue making strides to include support for Outlook 2013 and Microsoft Office 2016 in the coming months." -- James Ramey, President
(Score: 3, Informative) by linuxrocks123 on Monday November 07 2016, @04:40PM
There are differences. Mainly I think they put in special hacks to get various applications working that can't go in the main WINE source tree because they're horrible hacks. Eventually, of course, they solve the problem correctly and commit it to the main WINE source tree. I've had MS Office 2010 consistently working in a free-promo CrossOver Office even though it wouldn't work correctly with WINE. MS Office 2013 wouldn't work in either last I tried.
They do good work, and buying a subscription supports WINE. I'll probably get one once Office 2013 is officially supported because I sometimes teach a class that uses Office 2013, and not having to go to Windows for that is worth the $50 or whatever it costs for a year subscription.