I all, I ended up putting the xl2bb.xlam in the \AppData\Roaming\Microsoft\Excel\XLSTART folder to get it to load properly. On my private computer it's working fine, but on my work laptop I get a "Microsoft has blocked macros from running because the source of the file is untrusted" message. I can digitally sign macros that I do, but I don't know how to make the .xlam file trusted...