» Converting a Month's Serial Number into Its Corresponding Name

Problem:

Converting each month's serial number, as shown in column A, into its corresponding name.

Solution 1:

To return a month's full name, use the TEXT function as shown in the following formula:
=TEXT(A2*29,"mmmm")
To return the first three letters of a month's name ("Jan", "Feb" etc.), use the TEXT function as shown in the following formula:
=TEXT(A2*29,"mmm")

Solution 2:
Use the CHOOSE function as shown in the following formula:
=CHOOSE(A2,"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")