TablEdit is very useful and fairly user-friendly (albeit after a bit of a learning curve) program. Handy to convert both abc and midi files to tablature and notation, for changing key signature, converting from one instrument to another (e.g., mandolin to mandoa).
These days TablEdit technical support is good and the user groups are also very helpful. Even if you learn by ear its a handy thing to have because having a bit of tab can often quickly get you over a tricky spot in a tune.
Of course the TablEdit computer program does not have a lot of soul so I often use it along with the Amazing Slow Downer -- looking at the tab (TablEdit) and playing the tune along with my favorite mp3 recording at whatever speed I am ready for on the ASD.
Works for me.
Due to current budgetary restrictions the light at the end of the tunnel has been turned off -- sorry about the inconvenience.