OneDrive files won’t open offline on Windows

An outlined green circle with a check mark means the file is already on your PC and can open offline. Windows can return some locally available files to online-only when it frees space. The solid green circle shows a file marked to stay on this PC.

Select the files you need or mark their folder to keep it available offline. These copies use disk space, so choose just the files you need if space is tight. Once downloads finish, disconnect briefly when convenient and open an important file directly from File Explorer to confirm you have the copy.

Reconnect to the internet, check that OneDrive is running and signed into the account that owns the folder, then check whether your PC has room for the file. If you need a separate copy now, select the file on the OneDrive website and choose Download. Edits to a copy saved outside the sync folder will stay in that copy.