You should display the Developer tab when you want to write macros, run macros that you previously recorded, or create applications to use with Microsoft Office programs. Do the following:

Every workbook uses a palette of 56 colors, but you can change palette for the current workbook or even change the default colors for new workbooks.

When you need as much space as possible on screen to view a document, you can collapse (or minimize) the Ribbon and then restore it very simple.

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.

Excel automatically moves the cell pointer to the next cell down when you press the Enter key after entering data into a cell, but you can change this behavior to move it up, down, left, right and even stay on.

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.

Suppose you'd like to add a couple more commands to the Quick Access toolbar. 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.

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.

If you work with the same workbooks every day it will be helpful to open specific workbook files automatically whenever you start Excel. Any workbooks placed in the XLStart folder open automatically.

Excel 2013 automatically creates one worksheet in each new workbook, but you can force it to create as many worksheets as you need.