Hello,
I've never found these macro on the excel files, and it works fine without it. You just have first to fill the density datas then you will have to report manually the datas collected from the graphs (the "white" and "black" points from the density curves, the green pointers, and the exposure compensation).
For sure you could also do all that w/o any computer but it will take a hell of a time as you 'd need to draft all the curves.
Just one important point as I was looking back to the attached file filled with Chris's comments: the spreadsheet works for a total exposure time of 16s - associated with a light level of 374. Conversely to what it says, if you enter a different exposure time, unfortunately the spreadsheet won't make any corrections (no dependant formulas ), which means that your results will be wrong; the best thing is to stick for your tests to 16s otherwise you would need to modify the excel model to take into account the reference lumination level you would have used for our tests.