Facebook tucks its file upload feature into a corner of the site that you might not use too often. Facebook chiefly caters to sharing social content like photos and videos, but you upload miscellaneous files – documents, presentations and Excel spreadsheets – through the Files function of Facebook groups. Only other group members can view the uploaded spreadsheet, and any member can download it, add new data, revise the formulas and then upload the edited spreadsheet back to the group. Writer Bio
