I had a look at the Source code for this, lol....The tool I made actually handles the file lol; I parse the entire file and then grab whatever values and I want and then you can also edit any value/parameter. The structure uses a type of "List" to store parameter variables. Also I have noticed that in some saves the ACCOUNT_ID isn't always present... And when it is present, in the PARAMS block/array the ACCOUNT_ID will also be there and right above it is what looks to be some kind of hash which is the same length as the ACCOUNT_ID... So there may be security on some PARAM.SFO files.