"One of the justifiable criticisms of the iPad was that it was difficult to impossible to transfer files between many apps or networks. With the addition of some apps like PocketCloud and FileBrowser, and the improvement of the Open in… function in later systems , especially iOS 6, this has become even less of an issue. Still, I’m terms of downloading files on web based apps, you were often limited to photos from the camera roll. This was the case with the Edmodo app.
An Edmodo app update earlier in the year allowed access to the Camera Roll and Google Docs. This however, was still too limiting to use the Library/Backpack feature of Edmodo to upload, store and download most files.
Today that changed. The latest Edmodo iPad app now adds File Sharing functionality, both uploading and downloading to Edmodo’ s Library (for teachers) and Backpack (students)."
Via Matt Gomez, John Evans