open filename
open( filename )
open filenumber, filename
open( filenumber, filename )
Opens a file for reading and writing. The filename is specified as a string, and may be an absolute or relative path. If the file number is not specified file number zero (0) will be used. Note: BASIC-256 may have up to 8 files open at a single time. The files are numbered from 0 to 7. Opening a file to a number while another is already open to that number will close the open file.
Changedir, Close, Currentdir, Eof, Exists, Kill, Read, Readline, Reset, Seek, Size, Write, Writeline