Adobe? Adobe products have nothing to do with Carbonite or any WoW AddOn for that matter. WoW AddOns come as .zip or .rar compressed files. You need a program that will unpack either file. On Windows, Macs and Linux, .zip is mostly supported "out of the box", however .rar will require another program to unpack them. Also, the Windows utility for unpacking .zip files (Compress Folders) sometimes has problems unpacking .zip files using newer .zip algorithms.
For Windows (all flavors), I recommend 7-Zip which is a free open source program which will unpack just about every type of compressed file including .zip and .rar
http://www.7-zip.org/
Macs have StuffIt which will likewise unpack just about all compressed files.
Once you get the AddOn unpacked, you need to drop the Carbonite folders (there will be several) into your AddOns folder.