TabView makes it possible to view and print PowerTab tablatures with your Mac.

PowerTab is a well-known and widely adopted tablature editor for Windows
systems. You can easily find thousands of song transcriptions in this
format on the net.

With TabView you can also export your tabs in MIDI format, or follow the
playback on screen to help your learning process.

TabView is an Universal Application, thus it runs natively both on PPC
and Intel based Macs.