Onedrive For Macos 10.13.6 [RECOMMENDED]

Even if it installs, it may prompt a "Required Update" and block usage. 3. Third-Party Sync Clients

Requires macOS 11.0 (Big Sur) or later.

Since you are likely relying on the web version, ensure you are using the latest possible version of or Firefox for High Sierra. Safari 13 (the max for 10.13.6) may struggle to render newer web features. Consider an OS Patch (Advanced) onedrive for macos 10.13.6