Archives:

# Switching Parts of a String in Excel

I had the need to fix mistakenly entered email addresses in Excel, and luckily the mistake was a recognizable pattern. They should have been firstname.lastname@domain.com but were entered as lastname.firstname@domain.com. This short post explains how I extracted the names and switched them.

### How to Swap Parts of an Excel String

First assume you have smith.joe@acme.com in cell A2, and that what you want is joe.smith@acme.com in cell A5. Enter this formula in cell A3:

`=LEFT(A2,(FIND(".",A2,1)-1))`

That extracts "smith" out of the email address in A2, by using the FIND function to return the number of the position of the period. You subtract 1 to tell LEFT when to stop extracting.

Next, in cell A4, enter this formula:

`=MID(A2,(FIND(".",A2,1)+1),((FIND("@",A2,1))-(FIND(".",A2,1)+1)))`

That uses MID to extract from one after the period, through one behind the @. This is about finding the positions of parts of the string you can see are in a pattern, and subtracting or adding 1.

Now in A5 you can concatenate the two in the proper order, and add the domain, thusly:

`=A4&"."&A3&"@acme.com"`

That's it & good luck!