If you want duplicate values to stand out in an Excel spreadsheet, you can choose between two conditional formatting rules.

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

How to Show Duplicate Records in Excel. As your business grows, so too will the documents and spreadsheets that you use to help keep things running. Eventually, the spreadsheets may get so big ...

How to Use Excel to Show Only Duplicate Values. Business issues such as incorrect transactions, data entry errors, technical glitches and poor system design may cause duplicate values in your data ...

Excel's format painter doesn't just work with cell formatting—you can also duplicate formatting between shapes, charts, text boxes, and most other items in your spreadsheet.

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.