To add an Excel Sum formula across multiple sheets, determine the range of sheets in question by separating them with a colon in your Sum formula, written like so: =SUM(Sheet1:Sheet12!Cell#).

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" button ...

If you want to add parentheses in Excel, here is how you can do that.Although the manual method works pretty well when you want to add round brackets around one or two cells, you can use this ...

Another way to split data into multiple columns is to use some of Microsoft Excel's functions. If you choose this route, remember that the split values will be linked to the original values, meaning ...

Inserting a lot of columns or rows in Microsoft Excel is awkward and prone to mistakes. When you need to enter dozens or more columns, use this VBA procedure for ease and accuracy.

Image: 200dgr/Shutterstock. Applying multiple criteria against different columns to filter the data set in Microsoft Excel sounds difficult but it really isn’t as hard as it sounds.

Consolidating Data from Multiple Sources. The first step in creating a powerful PivotTable is to gather your data from various sources. Excel provides the flexibility to pull data from different ...