To access and play your mySongBook tabs you can use Guitar Pro 7.5 as a free player.
Once installed on your computer, the Guitar Pro 7.5 free trial will last for 30 days.
During this period you will have access to all the Guitar Pro 7.5 features.
Once the trial expired you will have the possibility to either purchase a Guitar Pro 7.5 license to continue the full Guitar Pro experience, or keep using the program as a free mySongBook tabs player.
Download your player from this link.