how do i change the .xml file association???

im kind of a noob, and i wanted to see what the contents of an xml file looked like, so i changed the program file assiaction to notepad. when i mounted my phone to put a theme for metamorph, the xml file didnt show up. in root explorer on my phone, i saw that it was a text file there also.

how do i make the xml file on my phone not appear as a document file so that metamorph will recognize it so i can install themes on it??

on my computer, the xml file association is now associated with the xml editor and note notepad.

 

When editing an xml file i copy it to my computer and use a program called HxD hex editor to edit the file without changing the file extension then i copy it back to the root of my sd card and use terminal emulator to push the file into my phone