Where Does Office Store the Most Recently Used List?

Where does Microsoft Office save the Most Recently Used list for Word, Excel, etc.? The answer is in a file under this directory:

C:\Users\UserName\AppData\Local\Microsoft\Office\VersionNumber\MruServiceCache

There will be a directory under that that is randomly generated, then under that is the product name. Then under that is a file with the name Documents_en-US (or whatever the language). That file is a JSON file that has the list in it.