Electrum 13 words seed help

[DreamweaverVCC]

The objective is to try to convert 13 words electrum seed into 12 words or 24 words for better compatibility,
So yeah after struggling for quite awhile,
I managed to get my master private key out, But now my master private key is in compressed mode and it is not showing the correct wallet, anyway can I uncompress it and try to convert the master private key into 12 words seed? Or am I missing something here? Any input would be appreciated !

[TryNinja]

How did you manage to get your master private key?

If your wallet have a password, remove it. Then, find your wallet file and open it with a text editor. Scroll down and at the bottom you will find
"xprv": "MASTER PRIVATE KEY HERE"

This is your master private key, and using it will give you the same addresses as the one from your seed.