I know that my "if" statement can only contain 7 nested functions, so here's
my problem. I have the following table:

Long Term Disability = LD Active Part-Time = AP
Active Full Time = AF Terminated = T
Retired = R Family Leave = LF
Active Union Hall Extra - AE Maternity Leave = LM
Personal Leave = LP Worker's Comp = WC

The above codes are in column B. I want to put a formula in column C that
will do the following. Look at the codes in column B and convert them to:

LD = DIS AP=REG
AF=REG T=TMG
R=TVR LF=EXT
AE=REG LM=EXT
LP=EXT WC=DIS

I understand how to write the formula for each one individiually, but since
I have more than 7 items, I don't know how to tell it for example:

if (B1="LD" or "WC" then "DIS", if B1="LF" or "LM" or "LP" then "EXT", if
B1="T" then "TMG", if B1="R" then "TVR" otherwise "REG")

How do I do the "or" part? Any help is much appreciated. Thanks.