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.

Before you start, make sure the column in question contains no duplicates. We can illustrate this technique by adding such a validation data control to the Membership Number column as follows: ...

Microsoft Excel is perhaps the most powerful spreadsheet application you can buy. But it also has some simple functions, like finding duplicates in data.

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.

Specify columns: Excel will prompt you to specify which columns you want to consider when identifying duplicates.

Open the Excel worksheet and select the range of cells that you want to search for duplicate items. For example, you might want to click a column header to select a column of telephone numbers.

By using the Highlight Cells Rules, you can highlight duplicate cells in your Excel worksheet to avoid confusion and mistakes.

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.

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.

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.

Microsoft Excel can do a lot of cool things. If you need it to generate random numbers, Susan Harkins can show you how.