Here is some extremely helpful information for those who had this question!

Yes, you can upload documents into Facebook.  That’s right, MS Word, MS Ecel…

Recently I was asked if Facebook had the capability to display work rosters in MS Excel format. Good question AND Great IDEA!

The business owner said “..all our staff are Facebook-a-holics.  My staff forget to check their shifts and I try to remind them about checking their times…having an  ability to upload rosters, amend them and make it available for staff after hours…an opportunity having it available on Facebook simply makes the roster easily accessible..”

This Facebook Group is not open to everyone, and has controlled group membership – only his staff.

Though Facebook is not a place users more than likely want to collaborate over documents, this ability is fantastic for those who use rosters, timetables etc.