Read Xbox 360 STFS archives (savegames, updates, DLC, etc) in the web browser.
This is not to be trusted to produce reliable output. This was made solely as an experiment.
A live example is available at https://invoxiplaygames.github.io/stfs-webjs/stfs.html
// Load an array buffer with an STFS file
STFS_LoadPackage(FileArrayBuffer);
// Print the package name
console.log(STFS_GetPackageName());
// Reset the library to use another file.
STFS_Reset();