editing a receipt, xml error

Hi guys, I am trying to modify an A4 receipt so that it doesn?t show the Price and line total columns. I located the code below and removed it from the xml files.

">" PageWidth * 0.13 "Price"

">" PageWidth * 0.15 "Line Total"

When I try to load it in store ops manager it brings back an error stating ?the file mat not be a well formed xml document?. I am fairly new to retail management, any ideas?

Thanks

Richard