The method used by Studio is very similar to LDraw texmap (and as such is not soooo much faster to create - but for sure more convenient 
). I believe it could be possible to write a conversion tool. The long sting after "PE_TEX_INFO" is the png image, encoded in base64 (there is a working decoder here: http://www.webutils.pl/Base64)
). I believe it could be possible to write a conversion tool. The long sting after "PE_TEX_INFO" is the png image, encoded in base64 (there is a working decoder here: http://www.webutils.pl/Base64)