File Overwrite/Cancel Selection 

	The file which you specified is being used for a "write"
operation, and it already exists. You have several choices. You may:

	1) Cancel the operation so as not to change the existing file.

	2) Overwrite the file, destroying its original contents.

	3) Append the current information to the end of the file.

	Please note that although appending to a file will leave the
original contents intact, there are many cases where doing so will
alter the original file format so that it can't be used again in the
manner for which it was intended. Therefore, the Append option is
provided as a convenience only, and should be used only if you
understand and feel comfortable with the possible side effects. 
Otherwise, select Cancel, and retry the operation with the name of 
a file which does not exist.