Guitar Pro is the most popular program for guitarplayers in the world. It is very useful and simple. There are a big collection of songs in guitar pro formats in Internet. It is the easiest way to study guitar with the help of this programm.
So, here is how to read guitar pro tab.
This is a simple well-known melody "Jingle bells":
Numbers are then placed on these lines to represent finger positions on the guitar fret board. If you read the diagram below you would play this on a guitar by putting your finger just behind the 4th fret on the 5th string (or the second thickest string) then put your finger on the 7th fret. The ‘zero’ represents playing an open string. So in this case you would play the open A string without finger position on the fretboard etc. As musical notes this would read as follows C#, C#, C#, C#, C#, C#, C#,E,A,H,C#...