When I save my data to a spreadsheet txt file I lose some data why is this?

I lose about 3 hours worth of data everyday but it is at different times of the day. I am saving my data to a spreadsheet txt file in excell about every 15 minutes. Why is my data disappearing?

Joey, you have alot in your block diagram.
Are you losing time on your computer or is it data? Is the data missing in one piece or is it missing data in several pieces?
I have the following suggestions. Your code would benefit with subVIs. Also, instead of discarding readings that happen before your time specification, you can use a wait until next ms so that your program will sit idle until it is time to take a reading. You can also set indexes on you array functions and supply a format string on the format into file function to ensure that the proper values are outputed. If problems still exist, strip down your code to one data channel to simplify your file i/o. Run the stripped down code to see if it looses data.
Jeremy

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import java.awt.event.*;
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1) Next time use the CODE tags. this is way too much unreadable crap.
2) The problem is your String[][] data.... the only place I see you do anything approching initializing it is
data = new String[numLines][];I think you want to do this..
data = new String[numLines][3];anyway that's why it's blowing up on the line
data[row][col]=st.nextToken();

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When I save my data to a spreadshee​t txt file I lose some data why is this?

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