Creating Your Own Menu
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.
Generating a series of Dates
Often you'll want ot insert a series of dates into a worksheet. The most efficient way to enter a series of dates doesn't require any formulas - just use Excel's AutoFill feature.
Splitting text strings without using formulas
If you want to paste text in your worksheet, you can use Excel's Convert Text to Columns Wizard.
Solver tool allows you to specify multiple adjustable cells and constraints on the values that the adjustable cells can have, generate a solution that maximizes or minimizes a particular worksheet cell, generate multiple solutions to a problem.
Goal seeking is a useful feature that works in conjunction with your formulas. If you know what a formula result should be, Excel can tell you which values of one or more input cells you need to produce that result.
Calculating the difference between two time stamps
Because time stamps are represented as serial numbers, you can subtract the earlier time from the later time to get the difference.
Calculating the Number of Work Days between two dates
When calculating the difference between two dates, you may want to exclude weenends and holidays.
Calculating the Number of Days between two dates
A common type of date calculation determines the number of days between two dates.
Custom cell format
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.
Check data entry for invalid entries
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.