In OPEN DATASET Statement
Filenames are platform-specific. You must therefore use file- and pathnames that conform to the rules of the operating system under which your R/3 System is running. However, you can also use logical filenames to ensure that your programs are not operating system-specific. For further information, refer to Using Platform-Independent Filenames.
DATA FNAME(60).
FNAME = '/tmp/myfile'.
OPEN DATASET 'myfile'.
OPEN DATASET FNAME.
This example works as long as your R/3 System is running under UNIX. The program opens the file "myfile" in the directory in which the R/3 System is running, and also opens the file "myfile" in directory "/tmp".
FNAME = '[TMP]myfile.BIN'
OPEN DATASET 'myfile.BIN'.
question]] How to specify an MS-file & how to go about?