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 ...

If you manage data in multiple Excel spreadsheets, you can use the Consolidate Data wizard to merge data from several spreadsheets or workbooks into one master sheet. The Consolidate Data wizard ...

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 ...