Only one of those (AZW) is actually an ebook. Calibre should be able to convert an AZW file (provided it doesn't have DRM) just fine.
An ACSM file is a tiny authorization file that allows you to download an ebook that is encrypted for use with Adobe Digital Editions... usually an epub or pdf.
An MBP file is a companion file for MOBI (AZW) books that keeps track of info like bookmarks, highlights and stuff.
So basically... don't try to convert ACSM or MBP files. They're not ebooks.
