Settings in Excel 2010
Excel includes a variety of built-in formats that cover general, numeric, currency, percentage, exponential, date, time, and custom numeric formats. You can also design your own custom formats based on one of the built-in formats.
When a comment has been inserted in a cell, the little red triangle is being displayed to indicate a comment in a cell. This tip is how to hide/display this indicator.
Sheets can be grouped (connected) to facilitate creating or formatting two or more identical sheets. For example, you can create one sheet and copy it to two other sheets, or you can group three blank sheets and enter and format the content once-no subsequent copying required.
Having your 25 most recently used workbooks on the File menu is handy, but you may find it's not enough. You can increase the number shown up to 50, and you can pin (fasten) particular workbooks to the menu so that they remain there even if you haven't used them recently.
You can greatly reduce data-entry problems in your workbooks by making Excel check entries before entering them in specific cells. To do so, you need to define restrictions and data-validation rules for those cells.
Creating custom menus in Excel is a funny feature you can use to create groups of the options that you use most often, and then plug them into the menu you name and use yourself.
Unlike in previous versions, number of Undo levels in Excel 2010 is 100 - the biggest number that can be used.
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.
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.