How to Extract Data From Multiple Spreadsheets. Extracting data from an Excel spreadsheet converts the contents of the sheets' cells to variables. The workbook can then paste the values into a new ...

You can sum cells across multiple sheets in Excel. This article presents steps for Adding single-cell values or Adding values in the range of cells.

A complex Excel 2007 workbook could require multiple sheets. By default, Microsoft provides three sheets on each workbook, but you can add as many as you need.