You should be using the vi called "Write to Spreadsheet File", located under
the File I/O functions of the Functions Pelette. Just like all the vi's,
this vi also has wiring inputs. One of the inputs is called "append to file?
(new file:F)", for which you want to create a Boolean Constant and set it to
true. When you want to save a file, make sure to save it as a text file
(*.txt). I use that vi all the time and unless I change the file name, it
keeps adding collected data into the same file.
"Penghon" wrote in message
news:101-506500000008000000AF150000-982303670000@quiq.com...
> Every time i use the same file, no new data gets logging in. The VI
> used are from the file i/o functions.