Creating a list of duplicate values that’s separate from the data source is easier than ever thanks to Microsoft Excel's FILTER() function.

Microsoft Excel comes with a lot of built-in functionality that doesn't restrict you to comparing data in two columns using only one method.

If you wish to count the same or duplicate values in a column only once in Excel or the count of occurances of duplicate values, read this article.

How to Compare Two Excel Spreadsheets for Duplicate Rows. Excel 2013 can locate duplicate rows as long as one column contains a unique identifier for each record, such as a product ID or account ...

How Can I Merge Two Columns of Data Using Microsoft Excel and Eliminate Duplicate Values?. There are two situations in which you might need to merge two columns of data in Excel 2013. If you've ...

To pinpoint duplicate entries, apply Excel's conditional formatting feature: Open the Excel worksheet containing the data in question. Select the column or range you want to inspect for duplicates.

How to remove duplicates in Excel for a single column When you have duplicate data that you want to remove from a single column in your dataset, start by clicking into the column you want to dedupe.

Prevent duplicates before they happen by combining a simple function with data validation.

However, Excel's random number functions are volatile, meaning they change constantly. In this article, I'll show you how to generate and fix random numbers and remove duplicates.