WriteLine()

Writes a string of characters to a text file.

WriteLine(file f, string line)

WriteLine() adds a carriage return to the text file at the end of the string.
While ReadLine() is limited to reading strings of 5119 characters, WriteLine() has no such limit for writing strings.

ptr = OpenFile("lisfile.txt", "a")

WriteLine(ptr, "Add this line to the file")

Error Type	Meaning
Error	File is not open, is open in read-only mode, or is a binary file

Function	Summary
CloseFile()	Closes a file
ReadLine()	Reads a string of characters from a text file
OpenFile()	Opens a text or binary file on disk