365 Real-Time Co-Authoring
I’m going to tell you an anecdote that I’m sure will ring true for you: you go to open a file that you desperately need to work on, but a dialog box warning pops up saying “This file is locked for editing by so-and-so, would you like to open a Read Only copy”. Naturally, you click yes because the work must be done. So you do your work and then click Save As. Now, there are 2 copies of similar files, and as time passes it becomes 3 copies, and then 4… because you and your colleagues can’t work on the same file at the same time, right?