|It was created with third-party software using a proprietary (and rarely used) file format, and I doubt it's a video file anyway. It's more likely to be a slide-show file.|
You need that third-party software to be able to play it. It could be any of those listed below, which I found on a look-up website:
ABM Photo Impressions Album (ArcSoft, Inc.)
ABM Audition On-line Dance Battle Music (T3 Entertainment Co., LTD.)
ABM HitPlayer Audio Album File
More info on ABM here: http://www.fileinfo.com/extension/abm
Your best option is contact the sender and ask him/her what application was used to create it. I've never heard of it before.