Printable PDFs of tab and standard notation accompany your course, but we also include interactive Power Tab files so that you can see and hear the tab/notation played out at any tempo.

Mac users have 3 options when it comes to working with Power Tab files.

1) TabView makes it possible to view and print Power Tab tablatures with your Mac.

Power Tab 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 PowerPC and Intel based Macs. Download Tabview 

After installation, you may still need to associate Power Tab files (.ptb) to open with Tabview by following this procedure.

 2) With Guitar Pro you can import the Power Tab files using it’s import feature. Download Guitar Pro from here.

Guitar Pro is a musical software program offering all of the functionalities that all guitarists need.
Edit, visualize, and share your scores
Learn to play or improve your technique
Accompany yourself by creating the instrumental tracks of your choice
Enjoy a series of essential tools: scale-validating tool, tuner, metronome, guitar fretboard...

Tabview is available for 15 euros and the full version of Guitar Pro is $59.95 but both do offer free trial versions with limited functionality. 

3) TuxGuitar is an open source tablature editor supported by donations. Download TuxGuitar here.

With TuxGuitar, you will be able to compose music using the following features

Tablature editor
Score Viewer
Multitrack display
Autoscroll while playing
Note duration management
Various effects (bend, slide, vibrato, hammer-on/pull-off)
Support for triplets (5,6,7,9,10,11,12)
Repeat open and close
Time signature management
Tempo management
Imports and exports gp3,gp4 and gp5 files

If the player still doesn't want to open the .ptb files, make sure you have Safari set as your default browser. Firefox and Chrome have been known to cause issues. 

Thanks!