What is .AVB file extension?
File used by Microsoft Comic Chat, a chatroom application; contains an avatar that is referenced by the program to represent the user.
To use an avatar not included with Comic Chat, place the AVB file in the "ComicArt" folder in the application directory. Then, in the application, Select View → Comic Strip, click File → New Connection, select the "Character" tab, choose the name of the AVB file you just added, and click OK.
NOTE: Microsoft Comic Chat was discontinued but version 2.5 is still available for download.
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.