compress

[Patrick Lampani]

This is probably a really basic question.... but I can't find the answer and  
I'm still really new to UNIX.

I just downloaded a bunch of compressed files. Most of these files are like :

		TeX3.0.tar.Zaa
		TeX3.0.tar.Zab
		TeX3.0.tar.Zac
			.
			.
			.
		TeX3.0.tar.Zaz

How do I uncompress these files, with out having to rename them,then uncompress  
them and then un tarring them? Is their some other program I'm supposed to use?

Thank in advance.

-Patrick Lampani