7 reasons why you should use INDEX() formula in Excel

Of all the hundreds of formulas & thousands of features in Excel, INDEX() would rank somewhere in the top 5 for me. It is a versatile, powerful, simple & smart formula. Although it looks plain, it can make huge changes to the way you analyze data, calculate numbers and present them. It is so important that, whenever I teach (live or online), I usually dedicate 25% of teaching time to INDEX().

Today lets get cozy. Lets start a fling (a very long one). Lets do something that will make you smart, happy and relaxed.

INDEX formula - Usage, examples & Tips

Understanding INDEX formula

In simple terms, INDEX formula gives us value or the reference to a value from within a table or range.

While this may sound trivial, once you realize what INDEX can do, you would be madly in love with it.

Few sample uses of INDEX

1. Lets say you are the star fleet commander of planet zorg. And you are looking at a list of your fleet in Excel (even in other planets they use Excel to manage data). And you want to get the name of 8th item in the list.

INDEX to rescue. Write =INDEX(list, 8)

2. Now, you want to know the captain of this 8th ship, which is in 3rd column. You guessed right, again we can use INDEX,

=INDEX(list, 8,3)

Syntax of INDEX formula

INDEX has 2 syntaxes.

1. INDEX(range or table, row number, column number)

This will give you the value or reference from given range at given row & column numbers.

2. INDEX(range, row number, column number, area number)

This will give you the value or reference from specified area at given row & column numbers.

It may be difficult to understand how these work from the syntax definition. Read on and everything will be clear.

7 reasons why INDEX is an awesome companion

Whether you are in planet zorg managing dozens of star fleet or you are in planet earth managing a list of vendors, chances are you are wrestling everyday with data, pleasing a handful of managers (and clients), delivering like a rock star all while having fun. That is why you should partner with INDEX. It can make you look smart, resourceful and fast, without compromising your existing relationship with another human being.

Data used in these examples

For all these examples (except #6), we will use below data. It is in the table named sf.

Data used in INDEX formula examples

Reason 1: Get nth item from a list

You already saw this in action. INDEX formula is great for getting nth item from a list of values. You simply write =INDEX(list, n)

Reason 2: Get the value at intersection of given row & column

Again, you saw this example. INDEX formula can take a table (or range) and give you the value at nth row, mth column. Like this =INDEX(table, n, m)

Reason 3: Get entire row or column from a table

For some reason you want to have the entire or column from a table. A good example is you are analyzing star fleet ages and you want to calculate average age of all ships.

You can write =AVERAGE(age column)

or you can also use INDEX to generate the age column for you. Assuming the fleet table is named sf and age is in column 7

write =AVERAGE(INDEX(sf, ,7))

Notice empty value for ROW number. When you pass empty or 0 value to either row or column, INDEX will return entire row or column.

Likewise, if you want an entire row, you can pass either empty or 0 value for column parameter.

Reason 4: Use it to lookup left

By now you know that VLOOKUP() cannot fetch values from columns to left. It does not matter if the person looking up is the star fleet commander.

But INDEX along with MATCH can fix this problem.

Lets say you want to know which ship has maximum capacity.

  1. First you find what is the maximum capacity =MAX(sf[Capacity (000s tons)])
  2. Then you find position of of this capacity in all values =MATCH(max_capacity, sf[Capacity (000s tons)],0)
  3. Now, extract the corresponding ship name =INDEX(sf[Ship Name], max_capacity_position)

Or in one line, the formula becomes

=INDEX(sf[Ship Name], MATCH( MAX(sf[Capacity (000s tons)]), sf[Capacity (000s tons)], 0))

For more tips read using INDEX + MATCH combination

Reason 5: Create dynamic ranges

So far, your reaction to INDEX’s prowess might be ‘meh!’. And that is understandable. You are of course star fleet commander and it is difficult to please you. But don’t break-up with INDEX yet.

You see, the true power of INDEX lies in its nature. While you may think INDEX is returning a value, the reality is, INDEX returns a reference to the cell containing value.

So this means, a formula like =INDEX(list, 8) looks like it is giving 8th value in list.

But it is really giving a reference to 8th cell.

Since the result of INDEX is a reference, we can use INDEX in any place where we need to have a reference.

Sounds confusing?

For example, to sum up a list of values in range A1:A10, we write =SUM(A1:A10)

Now, in that formula, both A1 and A10 are references.

Since INDEX gives a reference, we can replace either (or both) A1 & A10 with INDEX formula and it still works.

so =SUM(A1 : INDEX(A1:A50,10))

will give the same result as =SUM(A1:A10)

Although the INDEX route appears overly complicated, it has other applications.

Example 1: SUM of staff in first x ships

Lets say you want to sum up staff in first ‘x’ ships in the sf table.

Since ‘x’ changes from time to time, you want a dynamic range that starts from first ship and goes up to xth ship.

Assuming ‘x’ value is in cell M1 and first ship’s staff is in cell G3,

=SUM(G3:INDEX(sf[Staff count], M1))

will give the desired result.

Example 2: A named range that refers to all ship names in column A

Many times you do not know how much data you have. Even star fleet commanders are left in dark. Lets say you are building a new ship tracking spreadsheet. Since your fleet is ever growing, you do not want to constantly update all formulas to refer to correct ranges.

For example, the ship names are in column A, from A1 to An. And you want to create a named range that points to all ships so that you can use this name elsewhere.

If you define the lstShips =A1:A10, then after you add 11th ship, you must edit this name. And you hate repetitive work.

One solution is to use OFFSET formula to define the dynamic range,

like =OFFSET(A1, 0,0, COUNTA(A:A),1)

While this works ok, since OFFSET is volatile function, it will recalculate every time something changes in your workbook. Even when someone replaces a bolt on landing gear of USS Enterprise.

This will eventually make your workbook slow.

That is where INDEX comes.

You see, INDEX is a non-volatile function*.

So you can create lstShips that points to,

=A1: INDEX(A:A, COUNTA(A:A))

*Even though INDEX is non-volatile, since we are using it in defining a range reference, Excel recalculates the lstShips every time you open the file. (reference).

Reason 6: Get any 1 range from a list of ranges

INDEX has another powerful use. You can get any one range from many ranges using INDEX.

Since you are a successful, smart & resourceful star fleet commander, you got promoted. Now you manage fleet of several planets.

And you have similar ship detail tables for each planet in a workbook. And you want to calculate average age of any planet’s ships with just one formula.

Again INDEX to rescue.

Using INDEX formula to get one of many ranges

Assuming you have 3 different tables – planet1, planet2, planet3

and selected planet number is in cell C1,

write =AVERAGE(INDEX((planet1,planet2,planet3),,,C1))

The reference (planet1,planet2,planet3) will point to all data and C1 will tell INDEX which planet’s data to use.

Pretty nifty eh?!?

Reason 7: INDEX can process arrays

INDEX can naturally process arrays of data (without entering CTRL+Shift+Enter).

For example you want to find out how much staff is in the ships whose captain’s name starts with “R”.

write =SUM(INDEX((LEFT(sf[Captain],1)=“r”)*(sf[Staff count]),0))

Although LEFT(sf[Captain],1)=”r” and sf[Staff count] produce arrays, since INDEX can process arrays automatically, the result comes without CTRL+Shift+Enter

Where as if you use SUM alone =SUM((LEFT(sf[Captain],1)=”r”)*(sf[Staff count])) you have to press CTRL+Shift+Enter to get correct results.

Other formulas: SUMPRODUCT & MATCH too can process arrays automatically.

Download Example Workbook & Get close with INDEX

Since you are going to ask, “I want to spend sometime alone with INDEX in my cubicle right now!”, I made an example workbook. It explains all these powerful uses of INDEX. Go ahead and download it.

Get busy with INDEX.

How to use INDEX in Excel – Video

In this video, learn how to use INDEX formula in Excel with many real-world examples. You can also watch it here.

Why do you love INDEX?

I love INDEX(). If we get a dog, I am going to call her INDEX.

Updated on Feb 2024: We did get a dog, but we call her Excel!

That is how much I love the formula. Almost all my dashboards, complex workbooks and anything that seems magical will have a fair dose of INDEX formulas.

What about you? Do you use INDEX formula often? What are the reasons you love it? Please share your tips, usages and ideas on INDEX using comments.

Learn more about INDEX & other such lovely things in Excel

If you are whistling uncontrollably after reading so far, you are in for a real treat. Check out below articles to become awesome.

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54 Responses

  1. Hi Chandoo,
    This is awesome *****

    Found 6, just one remaining, and I think it should be in sheet2, as I found 1 in each sheet but didn’t found anything in sheet2 (till yet, I am keep looking).

    Very cleaver and amazing work, enjoyed a lot…
    Thanks Chandoo for this beautiful work.

    Wish you have great time at Hyderabad.

    Regards,

    Khalid

  2. Oh I found the last one, (custom format hmm)

    Truly Amazing and the beauty of this forum.

    You are an Artist Chandoo.

  3. Hi Chandoo,

    Wow, you really have magical skills. I am in office and this sheet ate up an hour of my time….didn’t expect that.

    I could find 5 of the 7 pandas. Didn’t know one could hide so much data in innocent looking excel sheets.

    Thanks!
    -Ranjith

  4. This was very fun and challenging, thanks for posting! I found all of them (well, Sheet1 was tricky, it seems you’re supposed to find the cell and type it in yourself?). Wasn’t sure if it was cool to post the answers here or not, though. Guess I’ll post SPOILER ALERTS so you can skip the rest of the message if you don’t want to see what I came up with.

    SPOILER! SPOILER! SPOILER!
    My answers appear below.

    Sheet1: type PANDA in cell PAN3489
    Sheet2: cell AB201
    Sheet3: cell J8 (Picture1)
    Sheet4: cell H9
    Sheet5: expand Chart1
    Sheet6: formula = “=MID(ADDRESS(9,2^3*23*59,4),1,3)&BIN2HEX(11011010)”
    Sheet7: named range (A1:I18)

    1. Wookie – I would love to get a walkthrough of HOW you figured out sheet 1 and a bit of a formula walkthrough for Sheet 6.

      Basically, I don’t know how I could have found that particular cell input message on Sheet 1.

      And I have no clue about the BIN2HEX part of the formula…before your hint I was able to get the output to read AN9DA. The change to MID and the addition of that ‘,1’ changed it to PANDA…

      1. Hi Rachel,

        To get to the cell in sheet 1 you can press: ctrl G. Then special and then data validation: all. This is also the way to find panda in sheet 7 😉

    2. I agree, this was a fun way to test your ability to navigate through the functionality of Excel! And since you already posted the SPOILER ALERT warning, I should be safe posting a reply to your comment with some solutions of my own… 🙂

      I found all the same solutions you did with a few minor changes:
      Sheet1: If you notice, cell PAN3489 has Custom formatting. You don’t have to type “PANDA”, just the number 1.
      Sheet6: The MID function works as you described, but you can also simply change the RIGHT function to the LEFT function without having to add in the start and end positions for MID.
      Sheet7: Yes, the range name for these cells is called PANDA, but you don’t see the actual word in the sheet unless you change the Zoom setting to 39% or less (hence the clue “Z” 39%).

      Thanks again for a great post, Chandoo!!

    3. I must admit sheet 7 defeated me, but I have some corrections

      Sheet 1 – you type =LEFT(ADDRESS(ROW(),COLUMN(),2),3)&DEC2HEX(ROW())
      in PAN3489 to get “PANDA1”. As it is the first panda. I think panda1 is appropriate, but maybe
      =LEFT(ADDRESS(ROW(),COLUMN(),2),3)&LEFT(DEC2HEX(ROW()),2)
      is better, because it leaves you with “PANDA”
      Sheet 6 – I corrected to
      =LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
      Picky I know, but who uses mid when a right or a left will do?

      1. I know; that was weird. I did try using a LEFT formula, but I kept getting the $ prefix from the cell address. So I tried a couple of variations using MID and it gave me the result I needed. This is actually the first time I’ve ever tried using a MID formula starting at the first character, but I wasn’t trying to spend a lot of time on it, so I went with what worked.

  5. —–Spoilers———

    Alternate Solutions

    1) Type “1” (not the quotes) in PAN3489 and Excel will turn “1” into “PANDA”

    6) The formula Wookie lists also works with LEFT in place of MID

    Lot of fun. Solve time ~20 mins.

    1. @ Rob
      How this 1 turns to PANDA .. means How this is done by excel any formula or something in VBA

      Also how to reach cell PAN3489 .. there are no clues given on sheet 1

      1. @ Navdeep I found PAN3489 by going to “Formulas” and then “Name Manager” and saw there was a field called “Clue1” listed in the Name Manger that references 3489. Finding PAN as the column index was just a bit of a lucky guess through trial and error. Then a note in cell PAN3489 when you navigate there says to try “typing something.” I tried scrolling through the Format Cells menu to see if the text typed in the cell needed to be formatted a certain way, and noticed that “1= Panda” was listed in the custom text menu and tried it. A bit brute force, but I think the desired text entry.

  6. Sheet 1: The answer is not type in Panda. Type 1. There’s a special formatting that replaces 1 with Panda.

    Sheet 6: Just replace right with left, don’t worry about changing the numbers.

    Sheet 7: I found the named range, but don’t know what the Z 39% means. Thoughts?

  7. WOW! I’ve just found the secret eighth PANDA!
    Truly awesome!!!
    Am I the first one who figured that out, guys?

    Btw, thanks for the puzzle!

  8. It was truly a artists work
    chandoo you are grate
    all sheets are deigned different from each other

    @Wookiee: you have a good for others by posting the answers, Thank you too

  9. Guys I Got 8 PANDA in the workbook… 🙂
    [Look Chandoo has against played great trick by reserving one more ester egg, but we are also fan of none other than Chandoo, who can get hold of hidden 8th (untold) ester egg]

    Here is the full list:
    1) Sheet1: Type 1 in Cell PAN3489
    2) Sheet2: Goto Cell AB201
    3) Sheet3: Check the picture located above cell J8
    4) Sheet4: Goto Cell H8
    5) Sheet5: Cells, viz., A4, A10, A16, A21, A29 have all alphabets of PANDA
    6) Sheet5: Resize the chart to see PANDA
    7) Sheet6: Correct the formula as LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
    8) Sheet7: Range A1:I18 is named as PANDA

    1. 1) Sheet1: Type 1 in Cell PAN3489
      2) Sheet2: Goto Cell AB201
      3) Sheet3: Check the picture in the cell J8
      4) Sheet4: Goto Cell H9
      5) Sheet5: Resize the chart to see PANDA
      6) Sheet6: Correct the formula as LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
      7) Sheet7: Range A1:I18 is named as PANDA

    2. Actually, for sheet7, if you set the zoom to 39% or less, you will see the word PANDA. Yet another PANDA! 🙂

  10. Hi,
    i want to know how to manage bill wise manage vendor invoice and payment in excel please suggest.

    Thanks,
    Ram

  11. Hi Chandoo!

    You rock with these amazing skills!

    Sheet 1: ??
    Sheet 2: ??
    Sheet 3: Cell J8
    Sheet 4: Cell H9
    Sheet 5: A4, A10, A16, A21, A29
    Sheet 6: B2
    Sheet 7: ???

  12. I love this time of year and look forward to Chandoo’s egg hunts. Whilst I got all the pandas, I do not understand how sheet 7 works; Where is the source data and why does it only work when zoomed out to 39% or more?

      1. Ha ha, that’s fantastic. Thanks Hui. @Chandoo, thanks for yet another method to decrypt worksheets in order to re-build or explain them better to clients.

  13. These were fantastic and kept me intrigued until I could finish them. (Had to look here for help with Sheet1!) Definitely learning a lot about some new formulas. Awesome, Chandoo!

  14. Ok, just saw the notes on the Zoom 39% on Sheet 7. Can someone explain what’s happening here and why PANDA shows up at that level?

  15. Wow, great exercise.
    Tried and solved 5 out of seven and other two solved incorrectly (1 & 6).
    Thanks 🙂

  16. Wow.. Awesome set of puzzles Chandoo!!

    Am now trying to figure out how sheet 7 was prepared.. 39% Zoom setting logic.. Can someone help me with a hint?

    Thanks!

    1. Looks like this is an XL feature.. Zooming out the worksheets below 40% level, by default displays all named ranges (more than 2 cells)! Had not come across this till date..

  17. Great works! Was having FUN in finding the pandas. Thanks.

    btw, I used one basic function (Find, CTRL+F) to find 2 pandas. Simply Find “Panda” within “Workbook”… To my surprise, seems no one mentioned that in the process.

    On other other hand, Selection and Visibility Pane is a handy tool to see if there is “extra” shapes for locating pandas hidden in chart/picture.

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