Hi,
I have created a vi to show you an example of how this can be done.
The vi will calculate the mean of each channel(column) in your data file and inserts the result as in general header on the top of file. The vi also multiply data in each column with a factor of 2 and adds the results as new columns in the data file. The headers for these new columns are also inserted. Have a look.
-----------------------------------------------------------------------------------------------------------------------------
Waiting For the inner calling
🙂