Excel 2007 no longer has a menu (unless you call Home, Insert, Page Layout, etc., a menu), and you can't customize what's not there. Excel does still have context-sensitive right-click menus. However, unlike in previous versions of Excel, the user interface no longer provides a way to customize them.

If you prefer to avoid the empty workbook to be created when Excel starts up, you can do so by editing the command line that is used to start Excel.

Excel automatically creates three worksheets in each new workbook, but you can force it to create as many worksheets as you need.

If you would like to better understand how some of these complex array formulas work, consider using a handy tool - Formula Evaluator:

You can easily count the number of unique values of the range using a simple formula.

In order to get unique items in a range you can use the Advanced Filter to extract the unique values from a column of data and paste them to a new location.

Thermometer chart is nice indicator of the process with well-defined measure, e.g. task status. How to create simple thermometer chart, see Creating a simple thermometer chart. This tip will teach you how make it more appealing for your audience.

When you need as much space as possible on screen to view a workbook, you can collapse (or minimize) the Ribbon to only its labels by double-clicking the label of the tab you're currently using.

Suppose you'd like to add a couple more commands to the Quick Access toolbar. Perhaps you miss the menu in earlier versions of Excel that let you quickly switch between open Excel windows. Also, say you're a big fan of AutoSum. You can add the AutoSum button to the Quick Access toolbar, so you can quickly create and use AutoSum entries.

Candlestick chart is a style of bar-chart used primarily to describe price movements of a security, derivative, or currency over time. This chart type is often used in combination with the volume bars chart for technical analysis of stock and foreign exchange patterns.