This page lists file formats which can be counted by AnyCount. When you are in Settings window, you can adjust count settings for each of the file formats you have selected on Files screen.
Java ARchive is an archive file format.
An XPI file is a compressed installation archive used by various Mozilla applications, including Firefox, Thunderbird, and SeaMonkey.
ARJ (Archived by Robert Jung) is a compressed file format used by the ARJ archiver.
LZH is a freeware compression utility and associated file extension.
Files with the extension .7z are compressed archive files produced with 7-Zip open-source software.