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Please do as follows.

Select a blank cell, enter formula into the Formula Bar, and then press the Enter key.

See screenshot: Easily format mac address in cells by adding colons: The Add Text utility of Kutools for Excel can help you easily add colons to specified positions of a selected cell to format the number as mac address format.

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See screenshot: Download and try it now ( 30-day free trail) Format mac addresses in cells by adding colon with VBA With below VBA code, you can format a range of numbers as mac addresses at once in Excel.

Press the Alt F11 keys simultaneously to open the Microsoft Visual Basic for Applications window.

In the Microsoft Visual Basic for Applications window, click Insert Module.

VBA code: Format numbers as mac addresses in cells Sub FormatMAC().

End Sub 3. In the opening Kutools for Excel dialog box, please select the cells with numbers you will format as mac addresses, and then click the OK button.

Then you can see all selected numbers are formatted as mac addresses as below screenshot shown.

Easily format mac addresses in cells by adding colon with Kutools for Excel This section will introduce the Add Text utility of Kutoos for Excel.

With this utility, you can quickly add colons to cells at specified positions.

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Before applying Kutools for Excel, please download and install it firstly.

Select the cells you need to format as mac addresses.

And then click Kutools Text Add Text.

In the Add Text dialog box, please type a colon into the Text box, select the Specify option, and then enter the specified position numbers into the box.

Note: In this case, I need to add colons after every two numbers in cells, so I enter 2, 4, 6, 8 and 10 and separate them by commas.

See screenshot: If you want to have a free trial ( 30-day) of this utility, please click to download it, and then go to apply the operation according above steps.

Related articles: How to add text in middle of selected cells in Excel How to add comma at end of celltext in Excel How to add a character before each word in a cell in Excel The Best Office Productivity Tools Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80 Reuse: Quickly insert complex formulas, charts and anything that you have used before; Encrypt Cells with password; Create Mailing List and send emails.

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