Duplicates in the same column are easy to find by sorting or filtering. Duplicates that span multiple columns require a bit of setup, but the solution's not difficult to implement. Finding duplicate ...

The needful can be achieved using the COUNTIF function. You could either count the frequency of duplicates in Excel or the order of their occurrence in Excel. Count the frequency of duplicate values ...

Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...

Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

When you want to clean up data in your Excel sheets, you should first check if there are any duplicates and if so, delete them. Sometimes it's not obvious, but it's actually quite easy to do. In this ...

There are two situations in which you might need to merge two columns of data in Excel 2013. If you've imported two columns of data from separate sources, you might want to combine them into a single ...