Depending on the web browser you use, you can upload files up to 250GB in size. (This limit is per file, not total.)
4. Select the files you want to upload, and then select Open.
For both File Explorer (Windows) and Mac Finder (MacOS), if you wish to copy the item instead of moving it, follow these steps: Right-click on the file or folder you want to copy, then select “Copy.” Next, open the destination OneDrive folder (or sub-folder), right-click again, and choose “Paste” to create a copy of the item in OneDrive.
To move a file using Windows File Explorer, simply drag the file from the list in the right pane and drop it into the OneDrive location displayed in the left pane. This will initiate the move operation, transferring the file to OneDrive.
To move a file using Mac Finder, follow these steps: