在Excel中使用什么公式将一个单元格上丢失的文本返回到另一个单元格

Question

I am comparing two columns ( A and B) and I wanted to return the missing text/value from column A . MY reference column is B.

Column A    Column B   Column C
ana         ana
ray         ray
jack        jack
bryan

Answer 1

You could use a formula like this one to compare the columns and return the value of a cell in A if that value is not present in B, but you would have to copy the formula down for all the rows in which column A has data:

=if(iserror(vlookup(a1, B:B, 1, false)), a1, "")

Answer 2

If you want the absent ColB entries to be listed sequentially in ColC, then the following array formula -- entered by holding down ctrl+shift while hitting enter should work. In the formula below, ColA and ColB range references must be the same size . Enter the formula in C1 and fill down as far as needed.

C1: =IFERROR(INDEX(ColA,-ROW(ColA)+1+SMALL((COUNTIF(ColA,ColB)=0)*(LEN(ColA)>0)*ROW(ColA),ROWS($1:1)+SUM(--((COUNTIF(ColA,ColB)=0)*(LEN(ColA)>0)=0)))),"")