excel – How can I find out the cell adress of the vlookup result

Using a combination of ADDRESS and MATCH should help:

=ADDRESS(MATCH(YEAR(L12),Table!$A$1:$A$26,0),MATCH(MONTH(L12),Table!$A$1:$M$1,0))

Table:

I always suggest using INDEX/MATCH instead of VLOOKUP.

INDEX/MATCH can do everything VLOOKUP (and HLOOKUP) can do but it is:

• faster (important when used in many cells);
• more versatile (the value you are looking up does not need to be in a column to the right);
• more robust (inserting columns does not break it);
• easier to use (no column counting required);

If you used an INDEX/MATCH formula, such as this:

=INDEX(Table!$B$4:$M$65,MATCH(YEAR(L12),Table!$A$4:$A$65,0),MATCH(MONTH(L12),Table!$B$3:$M$3,0))

You could put it straight into a CELL function to return the full address:

=CELL(
    "address",
    INDEX(Table!$B$4:$M$65,MATCH(YEAR(L12),Table!$A$4:$A$65,0),MATCH(MONTH(L12),Table!$B$3:$M$3,0))
)

Example Table:

Example Result:

AUTOMATICALLY COLOUR THE VALUE IN THE TABLE

You do not need the address to highlight the value in the table.
Just create a conditional formatting rule for $B$4:$M$65:

=AND(MONTH(Sheet2!$L$12)=B$3,YEAR(Sheet2!$L$12)=$A4)