problems running microsoft 365

Unfortunately, this is a compatibility limit. Current Microsoft 365 desktop apps no longer support macOS Big Sur, and Big Sur is the newest macOS Apple officially supports on your Late 2013 MacBook Pro.

The simplest workaround is to use Word, Excel and PowerPoint in your browser at Microsoft365.com, provided you have a compatible browser. They cover everyday editing, though some desktop features aren’t available.

For desktop use, Office version 16.77 was the last to support Big Sur. An existing installation may still work, but it no longer receives security updates, so it isn’t a good long-term solution.

There’s no supported setting that makes the latest desktop apps run on Big Sur. Unofficial macOS patchers exist, but for reliable, supported use of current Microsoft 365, you’d need a newer Mac or another supported computer.