DevConverter converts your archives online. Amongst many others, we support ZIP, RAR, TAR.GZ and 7Z. No need to download any software like WinRAR or 7ZIP.
TBZ2 is an archive file associated with UNIX. TBZ2 uses TAR and BZIP2 Compression. It uses TAR to archive the files first, then it uses BZIP2 algorithm to compress the TAR files. It decompresses similarly. First BZIP2 un-compresses and then TAR archive extracts it.