Outlook (Windows desktop): click Download Signature, then move the file into
Outlook on the web / new Outlook: click Copy HTML, then go to Settings → Account → Signatures, click into the signature box and paste.
Outlook (Mac): click Copy HTML, then in Outlook go to Outlook → Settings → Signatures, add a new signature and paste into the editor.
Apple Mail: click Copy HTML, then in Mail go to Mail → Settings → Signatures, select your account, click
%APPDATA%\Microsoft\Signatures (paste that into the File Explorer address bar).
Restart Outlook and pick the signature under File → Options → Mail → Signatures.Outlook on the web / new Outlook: click Copy HTML, then go to Settings → Account → Signatures, click into the signature box and paste.
Outlook (Mac): click Copy HTML, then in Outlook go to Outlook → Settings → Signatures, add a new signature and paste into the editor.
Apple Mail: click Copy HTML, then in Mail go to Mail → Settings → Signatures, select your account, click
+ and paste.
Untick “Always match my default message font” so the signature keeps its styling.