I work for an decent sized international company that not only has a presence on the web it also has factories and all of the complexities that go with that. I would indeed count where I work as an "office environment", I even have the cube, office badge and mailbox to prove it :)
MS Office is the defacto file format for office work, and MS Office on non-Windows platforms (ie. Mac) is so bad as to appear intentionally crippled.