Where I export the configuration files created by MP3TAG Free version

[ohrenkino]

Your post is a little hard to understand.
I assume that you want to know where to find the configuration file for MP3tag.
If this assumption is correct, please see the FAQs:

Installation & Backup

Can I keep my settings when updating to a new version? Can I backup my settings or use them on a different computer? How to build a portable installation of Mp3tag? Cannot write configuration file Right-click context menu is missing on Windows 11