Function in Excel 2013
Excel's ability to create automatic subtotals is a handy feature that can save you a great deal of time.
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.
If you would like to better understand how some of these complex array formulas work, consider using a handy tool - Formula Evaluator:
The Excel TEXT function enables you to specify numbers and date format.
Often, data imported into an Excel worksheet contains excess spaces or strange (often unprintable) characters. There are two handy functions TRIM and CLEAN to cleanup such data.