Creating Cell References that Span Across Worksheets
There are several reasons why you may choose to use multiple worksheets in your spreadsheet models. For example, a large model may be split into a few smaller models, each of which can be easily put on separate worksheets.
The combined results of these parts can be displayed on a summary worksheet. This approach simplifies the presentation of the overall spreadsheet model and provides a way to include all of the complexity necessary for the large model to be meaningful and accurate.