MassXUIDChanger.py - Changes the XUID(s) section of an Xbox 360 STFS container with the ones provided upon input. Modes - [FB] for folder mode, [P] for file mode.

MassAvatarItemDownloader.py - Downloads Avatar Item content from Xbox Live servers and compiles them. Modes - [FB] for folder mode (scan raw files), [TB] for text file mode (Item ID's seperated by a newline), [I] for ID mode (enter Item ID directly).

Avatar Item Archive (Compiled + Raw) - https://archive.org/details/x360-avatar-items

Python 3.5+ required.