Read and export from excel

Hi All

Can someone please assist me in this regard:

I have a VI that continuosly measure and log data from two frequencies, frequecy A and frequncy B interchangeably and then save the logged data in excel spreadsheet with a time stamp.

the problem i am having is that both frequncies and associated data, which differs, are logged vertically below each other and associated data horizontally in line with each frequency.

I would like to have a VI that can seperate these two frequncies like data from frequency A be looged in one tab of the spreadsheet and that from B on the other tab of the same spreadsheet.