labview 8.6 Please help me to solve this problem

[ahbian]

The attachment is the block diagram of my project, i am doing some IC chip performance verification and i need to output the data values collected to an Excel and i write my program this way such that it will start to write the data to excel when all digital values are 00000000 (8 bits)is there a way to output an empty array? so that before the 00000000 arrives it will not write anything to excel. The attached Excel file is the output of the program and there are many undesirable blank space before the actual data. any idea that can solve this problem?? 

[Dennis_Knutson]

What does this have to do with SignalExpress?

The way you have written the program, it does not start to write when a certain condition is made. It starts to write when the loop finishes. You should use a case statement inside the loop and build the array inside the case statement. A shift register and build array function would be needed.