Opens the editor on the file with the given
When the contents of the file is saved, it is saved to the file, not the workspace.
callback instruction list is run when the user closes the editor.
WINDOWFILEEDIT "|c:\\Program Files\\FMSLogo\\Logolib\\DEMO| [PRINT "Done]
Let the user select the file to edit
WINDOWFILEEDIT DIALOGFILEOPEN "|c:\\Program Files\\FMSLogo\\Logolib\\*| [PRINT "Done]