How to Sum Across Worksheets in Microsoft Excel. Using multiple sheets in the same Excel workbook helps organize data into distinct categories. For example, you might have sales data for each of ...

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. Clicking the "Insert Worksheet ...

You’ll learn how to: Navigate the Excel homepage Use rows, columns, and cells Enter and format data Create formulas like SUM Sort and organize your spreadsheet Work with multiple sheets in one ...