need help please with Teams xml file

Hey guys,
I'm pretty sure I have did this in the past correctly with previous versions but for the life of me I cant remember how. I went through the forum and I didnt find the
exact problem I have for you guys. I want to edit the teams.xml file, I'm changing the teams to who I want for the 30 team league 16 games. So I right click on the teams.xml file, I hit"edit" and it comes up as a txt file. I go and fix exactly what I want.... now my question, how do I save it back to the xml file? When I save it it shows up as a txt file. I cant for the life of me remember how to save it back to the xml file. Anybody please can help with this????? I would greatly appreciate it and please excuse my dum dum mind on this for not remembering.
Thank you guys so much!
I'm pretty sure I have did this in the past correctly with previous versions but for the life of me I cant remember how. I went through the forum and I didnt find the
exact problem I have for you guys. I want to edit the teams.xml file, I'm changing the teams to who I want for the 30 team league 16 games. So I right click on the teams.xml file, I hit"edit" and it comes up as a txt file. I go and fix exactly what I want.... now my question, how do I save it back to the xml file? When I save it it shows up as a txt file. I cant for the life of me remember how to save it back to the xml file. Anybody please can help with this????? I would greatly appreciate it and please excuse my dum dum mind on this for not remembering.
Thank you guys so much!