That's only looking at O365, the cloud-based version of Office. Not all companies have migrated to the cloud version yet. If you look at all versions of Offic

That's only looking at O365, the cloud-based version of Office. Not all companies have migrated to the cloud version yet. If you look at all versions of Office, some sources claim Microsoft has 90% of the Office Suite market. I'm not linking to any, because I don't know which, if any, are trustworthy.