When receiving a sheet which contains some IP addresses with two digits in some segments, you may want to pad the IP address with zero to three digits in every segment as below screenshot shown. In this article, I introduce some tricks to quickly pad IP address in Excel.

Select a blank cell, type this formula,

=TEXT(LEFT(A1,FIND(".",A1)-1),"000.")&TEXT(MID(A1,FIND(".",A1)+1,FIND("~",SUBSTITUTE(A1,".","~",2))-FIND(".",A1)-1),"000.")&TEXT(MID(A1,FIND("~",SUBSTITUTE(A1,".","~",2))+1,FIND("~",SUBSTITUTE(A1,".","~",3))-FIND(".",A1)-1),"000.")&TEXT(MID(A1,FIND("~",SUBSTITUTE(A1,".","~",3))+1,LEN(A1)-FIND(".",A1)-1),"000")

A1 is the IP address you use, press Enter key, drag fill handle down to the cells needed this formula. see screenshot:

1. Press Alt + F11 keys to enable Microsoft Visual Basic for Applications window, click Insert > Module to create a new module. See screenshot:

2. In the Module script, paste below code to it, and then save the code and close the VBA window. See screenshot:

``````Function IP(Txt As String) As String
'UpdatebyExtendoffice20170725
Dim xList As Variant
Dim I As Long
xList = Split(Txt, ".")
For I = LBound(xList) To UBound(xList)
xList(I) = Format(xList(I), "000")
Next
IP = Join(xList, ".")
End Function``````

3. Go to a blank cell which you will place the calculated result, type this formula =IP(A1), press Enter key, and drag fill handle down to the cells you need. See screenshot:

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