Opening the same file with the same account but on different machines

I have a computer in the office (PC) and one at home (MAC).

I’d like to open XYZ.file in the office, work on it, save, and continue working on the same file the next day, from a different machine (but same account). I don’t want to have to send it back and forth to myself or do version control.

When I share it with Axure Cloud I can see the file on a different computer, but I can’t edit it. How do I save a file in the cloud so I can keep working on it, regardless of my location?

Please help!

I have a pro account, don’t fancy upgrading just so that I can work on the cloud.
I know I can log in in multiple computers, that is not where the problem lies.

For your specific setup, the easiest way to handle this without upgrading is to use a cloud sync service like OneDrive, Dropbox, or Google Drive. Just save your .rp file directly into a synced folder on your office PC, and it will be waiting for you in the same folder on your Mac when you get home.