The conversion of the file 3GA to M4R will allow you to edit a file using other software than before. The conversion 3GA to M4R is particularly helpful in cases where you want to give certain features to the data in the 3GA file, and all the programs that support the 3GA format do not have the possibility to introduce the desired changes.
Just download one of the programs from the list and install it on your computer. After starting the program, select 3GA file that you want to convert. Then select the target format (in this case M4R) and follow the instructions. Save the converted M4R file in the selected location. From this moment you can open the M4R file with all the programs that you will find here.