Excel help

Unbeknownst to many users, Excel can do matrix operations very efficiently, either directly, or through the use of matrix functions.

Many Excel formulas require the specification of one or more ranges of cells as arguments. In many cases the easiest way to indicate such a range is to select it using keystrokes and/or a mouse as the formula is typed.

The following list summarizes the various macro security settings. Under all settings, if antivirus software that works with 2007 Microsoft Office system is installed and the workbook contains macros, the workbook is scanned for known viruses before it is opened.

Data validation is an Excel feature that you can use to define restrictions on what data can or should be entered in a cell.

You can combine worksheets, views (view: A set of display and print settings that you can name and apply to a workbook. You can create more than one view of the same workbook without saving separate copies of the workbook.).

By taking the following precautions, you can help reduce the risk of your computer being infected by a virus.