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Highlight Cell Rules - Duplicate and Unique Values

Highlight Cell Rules is a premade type of conditional formatting in Excel used to change the appearance of cells in a range based on your specified conditions.

Duplicate Values.. is one of the options for the condition, and can check for both duplicate and unique values.

Here is the Highlight Cell Rules part of the conditional formatting menu:

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Highlight Cell Rule - Duplicate Value Example

The "Duplicate Value..." Highlight Cell Rule will highlight a cell with one of the appearance options based on the cell value being the same as other cells in the range.

You can for where the Highlight Cell Rule should apply. It can be a a few cells, a single column, a single row, or a combination of multiple cells, rows and columns.

Let's apply the rule to all of the cells values.

"Equal To..." Hightlight Cell Rule, step by step:

1. Select the range A2:H8

2. Click on the Conditional Formatting icon in the ribbon, from Home menu
3. Select the Highlight Cell Rules from the drop-down menu
4. Select the Duplicate Values... from the menu

This will open a dialog box where you can specify the value and the appearance option.

5. Select Duplicate
6. Select the appearance option "Yellow Fill with Dark Yellow Text" from the dropdown menu

Now, all the cells in the range that have the same value as another cell are hightlighted in yellow:

All of Ditto's stat values are 48 and all of Mew's stat values are 100, so they are all hightlighted.

All of the Dittos and all of the Normal Type values are also highlighted.

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Highlight Cell Rule - Unique Value Example

The "Duplicate Values..." Highlight Cell Rule can also find and highlight Unique Values.

Let's apply this to the same set of data:

You can for where the Highlight Cell Rule should apply. It can be a a few cells, a single column, a single row, or a combination of multiple cells, rows and columns.

Let's apply the rule to all of the cells values.

"Equal To..." Hightlight Cell Rule, step by step:

1. Select the range A2:H8

2. Click on the Conditional Formatting icon in the ribbon, from Home menu
3. Select the Highlight Cell Rules from the drop-down menu
4. Select the Duplicate Value... from the menu

This will open a dialog box where you can specify the value and the appearance option.

5. Select Unique from the dropdown menu
6. Select the appearance option "Green Fill with Dark Green Text" from the dropdown menu

Now, the cells with unique values will be highlighted in green:

Mew and Psychic only appears once in the range, so these values are highlighted.

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