This folder is kept in sync with OneDrive. When you install the Microsoft OneDrive sync app for Mac, a copy of your OneDrive is downloaded to your Mac and put in the OneDrive folder. Nonetheless, it has 7 GB of free storage on offer for the users which can go up to 25 GB as well. It was integrated with the Office 365 package apart from being a standalone app which made it popular with users. OneDrive is the go-to app for many Windows users when it comes to cloud storage. Download OneDrive for Mac & read reviews. When you install OneDrive, a OneDrive folder is created on your computer. OneDrive (formerly SkyDrive) for Mac is the easiest way to access your OneDrive from your Mac.