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How to format mac addresses in cells by adding colon symbol in Excel?

Supposing you received a worksheet contains a list of numbers, and now you need to format all these numbers as mac addresses by adding colon symbol as below screenshot shown. What can you do to achieve it? You can try the method in this tutorial to solve the problem.


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. See screenshot:

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Format mac addresses in cells by adding colon with formula


The below formula can help you format number as mac address by adding a colon. Please do as follows.

1. Select a blank cell, enter formula =LEFT(A2,2)&":"&MID(A2,3,2)&":"&MID(A2,5,2)&":"&MID(A2,7,2)&":"&MID(A2,9,2)&":"&RIGHT(A2,2) into the Formula Bar, and then press the Enter key. See screenshot:

Note: In the formula, A2 is the cell contains the number you will format as mac format.

2. Select the first result cell, drag the Fill Handle down to get all mac format numbers. See screenshot:


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. Please do as follows.

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

2. In the Microsoft Visual Basic for Applications window, click Insert > Module. Then copy below VBA code into the code window.

VBA code: Format numbers as mac addresses in cells

Sub FormatMAC()
    Dim I As Long
    Dim xRg As Range
    Dim xCell As Range
    Dim xVal As String
    Dim xStr As String
    On Error Resume Next
    Set xRg = Application.InputBox("Please select range:", "Kutools for Excel", Selection.Address, , , , , 8)
    If xRg Is Nothing Then Exit Sub
    For Each xCell In xRg
        xVal = xCell.Value
        If InStr(xVal, ":") > 0 Then
            xVal = Replace(xVal, ":", "")
            If Left(xVal, 1) = "0" Then xVal = Right(xVal, Len(xVal) - 1)
        End If
        For I = 1 To Int(Len(xVal) / 2)
            xStr = Mid(xVal, Len(xVal) + 1 - 2 * I, 2) & " " & xStr
        Next
        xStr = "0" & Mid(xVal, 1, 1) & " " & xStr
        xCell.Value = Left(Replace(xStr, " ", ":"), Len(xStr) - 1)
        xStr = ""
    Next
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. Please do as follows.

Kutools for Excel : with more than 300 handy Excel add-ins, free to try with no limitation in 60 days.

1. Select the cells you need to format as mac addresses. And then click Kutools > Text > Add Text. See screenshot:

2. 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. And finally click the OK button.

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:

Tip: If you want to remove all colons from a range of cells, you can try the Remove Characters utility of Kutools for Excel. Select the cells you will remove colons from, enable the utility, enter a colon mark into the Custom box, and then apply the function. See below screenshot. You can go to free download the software with no limitation in 60 days.


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    john · 1 months ago
    You can Format Mac Addresses using stringlearner.com. Much easier.