short answer: No.
Long Answer: No, Fred made the KOTOR Tool by going through the files located on the CD and compiling them all, and then making editors for specific files. Understandably, there are some stuff that Fred didn't put into KOTOR Tool, like a model editor, script decompiler, stuff like that. So other people made them (cchargin made MdlOps to export model files into an -ascii.mdl file that NWMax for GMax/3dsMax can read and import. MdlOps also can import an exported file from GMax/3dsMax as a new model for the game) (JdNoa made DeNCS, a handy script de-compiler. That means compiled scripts (.ncs) that don't have the source file (.nss) can be read by others)