I use the Write character to file.vi to save my data in the same path and same file (default.txt), but each time LV ask : "replace existing file ?". The answer is always Yes, so is it possible to force LV to replace this file every time and don't display the question window ? Thank's in advance.
Open "Write characters to file.vi" and see that "Open Create Replace.vi" has an input called "Show advisory dialog?". Wire false to this and LabVIEW won't ask you to replace. Hope this helps