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CONSTANTS:  File Input/Output
File Input/Output Constants

You may use either the CONSTANT (left column) or the VALUE (center column) in your code and get the same results.

CONSTANT VALUEDESCRIPTION
ForReading 1Opens a file for reading only
ForWriting 2 Opens a file for writing. If the file already exists, the contents are overwritten.
ForAppending 8 Opens a file and starts writing at the end (appends). Contents are not overwritten.