OpenFile()

Summary

Opens a text or binary file on disk.

file = OpenFile(string file_name, string mode)

Argument	Contents
file_name	The full path and name of the file to be opened
mode	The mode in which the file is opened, as shown below

Mode	Meaning
r	Open text file for reading
w	Create text file for writing, or truncate to zero length
a	Append: open text file or create for writing at end of file
rb	Open binary file for reading
wb	Create binary file for writing, or truncate to zero length
ab	Append: open binary file for writing at end of file
r+	Open text file for update (reading and/or writing)
w+	Create text file for update, or truncate to zero length
a+	Append: open text file or create for update, writing at end of file
rb+	Open binary file for update (reading and/or writing)
wb+	Create binary file for update, or truncate to zero length
ab+	Append: open binary file or create for update, writing at end of file

A file handle.

fptr = OpenFile("report.txt", "w")
WriteLine(fptr, "This is the first line of the report")
CloseFile(fptr)

Error Type	Meaning
Error	Invalid access mode
NotFound	File does not exist or could not be opened