I need a tool build where I can upload multiple sets of projections in an excel sheet to get output of an aggregate projection for each value. I also need the tool to be able to match the values in each set of projections. In most scenarios I am working with hundreds of entries that I need projections for so I do not have time to make sure all the values in the spreadsheet are accurate and accounted for. Value 1 sheet one 10 value 1 sheet 2 8 aggregate output 9.
I am willing to start work on this right a ways. I have done a few websites in the past where I had to create spreadsheets from data, so I know how to do it.