transfering data from vb to excel

I am currently writing a control program in vb, which reads values from an interface board and then runs a program in a loop (a continuous loop). However, for the purposes of documenting the inputs from the sensors I want to intermittently write the input valus to an excel (or a text file) for the purposes of producing graphs and performing futher analysis etc. I therefore was hoping someone could advise me about how to write the values, and the time (when the measurements were taken). Whether this could be done individually when the measurements were taken, or whether the values would have to be held in a temporary table before transfer would also be much appreciated...
P.S. as you may have realised I am new to programming...