dicko1 wrote:
I have two worksheets with the same data type on them right now. One
sheet has 550 different measurements on it and the other has 1100. I
would like to put them on the same graph, is it possible to chart the
data over the same period of time?

I'm assuming you have a time series on both sheets in addition to the
measurements. Make an XY chart out of one of the sheets, then add the
series from the second sheet.