From our example, you can add a few things you might need to finish your spreadsheet. Excel spreadsheets are TestChip's major type of information organization. They are not designed for access by multiple people from multiple locations. Moreover, even though they are really flexible, they are not good for managing interconnected data. They are possibly the fastest way to write a series of engineering calculations, unfortunately they are also the hardest calculations to review. You may get a handy SBR denitrification calculations spreadsheet for an extremely reasonable price.