Does anyone know this format?

[Ploaj]

I was looking into trying to rip the sprites from A Boy and His Blob and they are in .anb format. I found an animation software that animates hand drawn images that uses that extension so it made perfect sense that that was the correct software for these animations but it crashes when I try to open them.

Here's one of the files just in case.
http://www.mediafire.com/?nuw3li6xt9jbtdv

Any help would be appreciated.