Microsoft Excel has lot of functions to help users to simplify their work. These functions can be easily inserted in to a worksheet. For example if you want to find the absolute number then you can do the following
Click on the Formulas –> Insert Function
This would display the following Insert Function window.
Select ABS from the Select a function list box, this would prompt you to enter the number for which absolute value needs to be determined.
Enter the Number, –2345.87 and click OK to continue.
The following result will be displayed.