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.

Duplicates aren't bad, but you may need to know how many times a value is repeated or how many unique values are in a data range. Here's how to tackle these tasks in Excel.

A row-by-row formatting rule is as easy to apply as a column-by-column in Microsoft Excel, but you might not get the results you thought you would.

Input the ROWS function into that cell using the first and last cells of that column, not including the column heading. After that, you will know how many unique values are in that column.

How to Make Excel Continue to Count Up for Each Row. Entering a series of sequential numbers into an Excel spreadsheet, one per row, can be a time-consuming and repetitive task.

Enter a formula or use the AutoSum feature to total all values in a row in Excel. The AutoSum feature enables you to obtain a total for all values in a row or column at the click of a button.

Rows in an Excel worksheet can be repeated a specified number of times with user-defined functions. The Selection.insert command can be used to insert rows in an Excel sheet and there is no need to ...

If you need to compare two columns in Excel row-by-row instead of the entire column at once, use comparison operators. They check the values in each row and output TRUE if the data are the same or ...

Learn how to count the number of unique and distinct values in a column based on data in another column using array in Microsof Excel.