You could make money doing something you love (or like [or maybe not so much but just really good at]). It's great to see a spreadsheet come together, and usually a lot better than what you originally envisioned. Especially when the dang thing works.
All of these things pull you away from the thing you really want to do...which is to build and sell great spreadsheets. The best thing to do is use Excelville.com since they have web developers and internet marketing specialists to help get exposure for your spreadsheet.
Apart from these very popular categories, business owners can find various other types of spreadsheets solutions by collaborating with a prominent, reliable spreadsheet-solution-providing company and opt for the 'Personalized Spreadsheet'; solutions that are especially designed to meet your imposed criteria, created from scratch, tailor-made and adapted to your particular needs.
Size limitation : When a spreadsheet is first constructed and tested, the size tends to be small. However, as the spreadsheet grows with more and more data, it start slowing down, until it reaches that point where your feet go to sleep while you waiting for the re-calculation to finish.
types of spreadsheet
excel spreadsheet examples
examples of spreadsheet packages