Programs enabling conversion of the file:
If your objective is to convert the file from AZW1 to the file TXT, you can use any of the applications listed. AZW1 to TXT conversion process in every program intended for this purpose (so-called converters) is very intuitive and everyone is able to manage converting a file.
However, bear in mind that the list may also include programs to support and work with the indicated extensions AZW1 and TXT - and not only converters. In such a case, you need to open the source file AZW1 and from the options available in the program, choose ”Save as... TXT" or "Export to TXT".