How compare value of cells in excel then print result to other cells

Question

I have a very long table in this format:

Table:
B  | C | D | 
----------------
c10|mnp|   |
------------
c12|abc|dif|
------------
c15|xyz|   |
------------
c17|abc|equ|
------------
c17|mnp|   |
------------
c18|abc|dif|
------------
c19|xyz|   |
------------
c21|uck|   |
------------
c25|qkj|   |
------------
c25|abc|equ|
------------
c26|npk|   |
------------

The code in my normal understanding is like this:

FOR (whole Sheet or whole range of C column ($C$1:$C$8000) )
    IF $C(i) = "abc" then
      IF (($B(i) == $B(i-1)) OR (($B(i) == $B(i+1))
      THEN:
           assign value $D(i) = "equ"
      ELSE
           assign value $D(i) = "dif"

It is quite straight forward in normal programming language but I really don't know is it possible to code that in excel and how to execute that code ? My table is really very long and I can not do it manually!

Answer 1

If you are looking for a simple formula to use Column D, then you can just enter this in D2 and then drag down to autofill =IF(C2="abc",IF(OR(B1=B2,B3=B2),"equ","dif"),"") @simoco makes a great point that you should check out the available documentation prior to posting here as this site is intended to help solve problems after you have tried things out first.