can you create an ado file on stata what is stata ado-file? what is ado file? what is stata ado file what is stata ado what is the use of ado files what is ado file stata how utilitarian is stata what is stata what is stata ado files what are ado files what is stata ado file what is the use of an ado what is stata ado is stata ado file useful what are stata's ado files used for what is stata ado file what is the stata ado file in stata? ado-files microsoft stata why is stata used for stata?