Index Match across multiple tabs

Are you trying to find the largest value across all sheets or within an indivdual sheet?

Will you please attach a SMALL sample Excel workbook (10-20 rows of data is usually enough)? However, please give us an indication of the approximate number of rows of data you want the solution to work with (100, 1000, 100,000 or whatever). Please don't attach a picture of an Excel sheet (no-one will want to re-type all your stuff before starting).

1. It does NOT have to be your real sheet - mock up a SAMPLE if you need to. But not 1000's of rows!!! It makes manual checking so tedious. Whatever you do... make sure that all confidential information is removed first!!

2. Make sure that your sample data are truly REPRESENTATIVE of your real data. The use of unrepresentative data is very frustrating and can lead to long delays in reaching a solution.

3. Make sure that your desired solution is also shown (mock up the results manually).

4. Try to avoid using merged cells. They cause lots of problems!

Unfortunately the attachment icon doesn't work at the moment. So, to attach an Excel file you have to do the following: Just before posting, scroll down to Go Advanced and then scroll down to Manage Attachments. Now follow the instructions at the top of that screen.

For a start, your formula for MAX is incorrect. It's only looking in the last sheet. Use this instead:

=MAX(P4Y2014:P13Y2014!$B$5:$B$100)

an array fromula. Array Formulae are a little different from ordinary formulae in that they MUST be confirmed in the FIRST CELL ONLY by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. After that, the array can be dragged down as normal, to cover the desired range.

You will know the array is active when you see curly brackets { } - or "curly braces" for those of you in the USA, or "flower brackets" for those of you in India - appear around the outside of your formula. If you do not use CTRL+SHIFT+ENTER you will (almost always) get an error message or an incorrect answer. Press F2 on that cell and try again.

Don't type the curly brackets yourself - it won't work...

To get the value from column A, make a list of all sheets to be searched (in M1:M10) and call it "List" (CTRL-F3 to view edit named ranges). then use this array formula in B4:

Formula:

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Max (set by me for testing) is in b6 of P8Y014.

As stated try the following

Formula:

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However this seems a non representative example sice you're only looking inside two sheets for a maximum but I understood your OP to mean you're looking in 10 sheets.

I'm attaching the workbook with some helper rows which identify which sheet contains the max and hence returns the name.

Glad to have contributed and thanks for the rep.