Just use a Hex editor to convert the files back to normal by copying hex data from the original folder to the new one like this: Take the dds file you wish to convert back to a tex.11 (ignore the .bak) and delete from where it ends with a bunch of 00 numbers Copy the hex from the original file like in the img and replace it over where you deleted from in the dds Should look Like this: Now save the dds in the hex editor and then rename the dds you just edited to a tex.11 file