Hi ATC, I modified your vi, it creates an XLS file with the filename you assign (no dialog box). You get a dialog box only if the file already exists, but this is normal; if you don't want to have it either, simply delete it progammatically before creating the new one. Good luck,
Thank for the modification, it works as I like it ... you helps me save a lot of times (I did try like it before, but I forget to change the Excel control ... and the "Book1" appears always confused me and that was why I thought my assigned filename did not affected at all!).
With your comments that actually makes my applications working very well now.