Modify a TM in EXCEL

Hello guys!

Sorry; I am new in Trados and I am going CRAZY! ... I want to OPTIMIZE my first, old and very bad looking TM in excel, in order to see better what I want to save and what I want to erase but I am really going to die!

I am trying so hard. But nothing to do!

As far as I understand, I have to export my TM to TMX in Studio and then, using Glossary Converter I should be able to have an xls file ... Right?

This is my export ... WHY ???
What should I do with all this craxy package of files built by G.Converter ???