Dear @Kelly Brasseau,
Thank you for posting your question in the Microsoft Q&A forum.
Based on your description, the Files app is showing an extra‑large font size, and you would like to know how to change it back to the regular size.
For better understanding your situation, could you please provide more information:
Have this occurred before or this is the first time?
Have you tried to reset your device and reopen the app to check whether it still persists or not?
In the meantime, you can try suggestion below:
In the search bar, go to Settings > Accessibility > Text size. Try scrolling down to reduce the text size and apply the change, then check whether the font size in the Files app matches your expectation.Looking forward to your update, please understand the more information you provide, the more effectively I can support. I hope information above could meet your expectation.
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