Those of us over a certain age will remember using paper lookup tables for logarithms or trigonometry functions. Those who are younger will have been exposed to lookup tables in their programming ...

In the duplicate world, definition means everything. That’s because a duplicate is subjective to the context of its related data. Duplicates can occur within a single column, across multiple columns ...

Much of the data that you use Excel to analyze comes in a list form. You might need to sort the data, filter it, sum it, and perhaps even chart it. Excel tables provide superior tools for working with ...

One of the most common requests I receive from users is how to identify duplicate and unique values in Microsoft Excel. The easiest way I know is to apply a conditional format. In a nutshell, a ...