Originally posted by 宇宙689:

Originally posted by GunsForBucks:

https://www.freecodecamp.org/news/appdata-where-to-find-the-appdata-folder-in-windows-10/

C:\Users\x\AppData\LocalLow\IronGate\Valheim

I'm gonNA use someone else's archive. Do I have to put it all in here? Do you want to change your name? What do I need to know?

Each character has its fch file the old ones are backups.
I assume if you rename them and start the game, the game will pick up on whatever name you changed it to? IDK as I have not moved my stuff around. If you find out post back with the results so others with your issue can find the answer when they check the forum history in a search.