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I used to have Windows and I had it setup where all of my files were stored on One Drive and I could open them on my computer and then when I was done they would save directly back to One Drive never leaving a local copy on my hard drive. The whole goal was to keep my hard drive empty of certain files. I loved it. I came to Mac and love the computer with the exception that I can't seem to get this to work. iCloud is unable to do this. All of my photos, videos, and more importantly files are stored in 2 locations (my Mac and my iCloud). I don't want that. I'm not looking for 2 copies. I only want them stored in the cloud. I tried downloading One Drive to my mac and it won't allow it either.

Any ideas on how to accomplish this?