Specifying the conditional count of a value sounds like a daunting task, but two Excel functions make quick work of this challenge.

How to Count the Number of Non-Blank Cells in Excel. Microsoft Excel allows you to crunch massive quantities of data easily through the use of functions.

How to Count Hours Worked in Excel. Excel has a number of formulas that enable you to count the time between two dates. You can specify that you would like to count the difference in hours by ...

You can use Excel, Microsoft's spreadsheet program, to store, organize, and analyze data in a number of ways.

Of course, there are other ways to identify multi-column duplicates in Excel, but this one requires no specialized knowledge and is incredibly easy to implement.

Boolean logic: The method used to evaluate conditions, returning either TRUE or FALSE. Logical functions: The primary logical ...