A family of Microsoft word processing software products for creating web, email, and print documents.
Of course, I don't know the version, but I downloaded it only a while ago (2-3 months I think?)
The similarity checker does not work on any documents, too. It takes like 5 ish mins where it shows "Checking for similarity" and after that, it always shows "Try again". Thats the only main features that does not work. All the other "Editor scores" and "Corrections" type of stuff works though.