Studio 2021 SR2 upgrade tmw translation memories

Hello,

I have many old TMs only as tmw file (maybe from 2007 or 2009 version of Trados) and can not open them.
How can I use them in my version Studio 2021 SR2?
I can not upgrade the TMs - the field is not active - it is grey.

What can I do?

Thank you for your help,
Teja Prosenc

emoji