I have separate sheets based on month's of the year.
Each time I create a new month I copy the template sheet and fill in the data. Therefore each sheet has the same layout it's only the data that changes.
I'm getting to the point where I would interested in the data over two months combined, right now I would have to go into sheet 1 (Feb-2015) and copy the field say B2 (say it's 5) then go into sheet 2 (March-2015) and copy B2 (it is 7) then add them together, 5 + 7 = 12.
There must be a better way of doing this? Can I combine all of the sheets then create some type of selector for the month? I'm not sure what to do and also not sure what 'spreadsheet keywords' I need to Google to find what I want?