size size ( ) size ( file_number )
returns positive_integer_value
Returns the length, in bytes, of an opened file. If the file number is not specified file number zero (0) will be used.
Changedir, Close, Currentdir, Dir, Eof, Exists, Freefile, Kill, Open, Openb, Read, Readbyte, Readline, Reset, Seek, Size, Write, Writebyte, Writeline