I just purchased Pro. After a fairly frustrating few hours dealing with excel crashing after installation, I got that working. The similar posts here did not help, and when I tried to roll back the office install using the sequence utilizing officec2rclient.exe /update user updatetoversion=16.0.8528.2147 I would get a failed download of office. So, I finally just de-installed Office 2016 (365 subscription), and installed an old standalone version of Office. Marketxls installed and ran fine. Then I updated to the latest Office 2016 (365) and everything seems fine. And, things like my mail in outlook did not get deleted when I uninstalled Office. Certainly not the easy way, but it worked. BTW, sorry for the title of the post, it's mistitled, but can't figure out how to change it.