>I need a help.
>
>When I create file with fcreate(), file name is allways lower case etc aa.txt. Because of comunication program except only file name in upper case such as AA.TXT, question is how to create file with name in upper case.
>
>Thanks in advance.
>
>P.S. It is urgent.

Use strtofle('', 'AA.TXT') to create a file.