In Microsoft Excel, there are several suitable methods to find duplicate values with various functions. In this article, you’ll learn several handy methods with **INDEX-MATCH** to find matches or duplicate values in Excel with suitable examples and proper illustrations.

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**3 Formulas with INDEX-MATCH to Deal with Duplicate Values in Excel**

**Formula 1: Mark Duplicate Values with INDEX, MATCH, IF, and COUNTIF**

Let’s get introduced to our dataset first. Here, I have placed some salespersons’ states and sales within 7 rows and 3 columns. Now we’ll find duplicate values by using the **INDEX**, **MATCH**, **IF**, and **COUNTIF **functions. If no duplicate is found then the formula will show “Original” and if there is any duplicate then it will show “Duplicate”. The **INDEX **function returns a value or the reference to a value from within a table or range. The **MATCH **function searches for a specified item in a range of cells and then returns the relative position of that item in the range. The **IF **function is used to check a condition whether it’s met or not, and then it returns one value if it’s true and another value if it’s false. And the **COUNTIF **function counts the number of cells in a range that meets a given criterion.

**Step 1:**

⏩ Activate **Cell E5**

⏩ Type the formula given below-

`=IF(COUNTIF($C$5:C6,C6)>1,"Duplicate of "&INDEX($B$5:B6,MATCH(C6,$C$5:C6,0)),"Original")`

⏩ Then just hit the **Enter **button to get the output.

**Step 2:**

⏩ Now **double-click** the **Fill Handle **icon as shown in the image below to copy the formula for the other cells.

Finally, you will see that the duplicates are found.

**⏬**** Formula Breakdown:**

**➥**** MATCH(C6,$C$5:C6,0)**

The **MATCH **function finds the first occurrence of a value in a stack of values and returns the relative row number where the value is found. So it returns as-

**{2}**

**➥**** INDEX($B$5:B6,MATCH(C6,$C$5:C6,0))**

The **INDEX **formula returns a value from a specified row of a specified stack of cells. Like, **INDEX(B1:B10,5)** would return the **5th **value in the range **B1:B10**. From our array it will return as-

**{Ron}**

**➥**** COUNTIF($C$5:C6,C6)>1**

The **COUNTIF **function will look at all the states so far and counts up how many times the current value has occurred. If Excel sees the current value for the first time, the formula returns 1. And as 1 is not greater than 1, so it will show-

**{FALSE}**

**➥**** IF(COUNTIF($C$5:C6,C6)>1,”Duplicate of “&INDEX($B$5:B6,MATCH(C6,$C$5:C6,0)),”Original”)**

Finally, the **IF **function will show “Original” for **FALSE **and Duplicates for **TRUE**. So it returns-

**{Original}**

**Read More:** **Multiple Criteria in Excel Using INDEX, MATCH, and COUNTIF Function**

**Formula 2: Match the Duplicate Values with INDEX, ROW, and SMALL **

Here, we’ll find values for the nth duplicate by using the **INDEX**, **ROW**, and **SMALL **functions. The **ROW **function returns the row number for reference. And the **SMALL **function is used to return the nth smallest value from a given set of values.

**Step 1:**

⏩ In **Cell C16** write the given formula-

`=INDEX(Sales,SMALL(IF(State=StateName,ROW(State)-ROW(INDEX(State,1,1))+1),B16))`

**📔**** Note:**

Here we have defined array and reference names that will be helpful to use the formula-

**Sales= D5:D11**

**State= C5:C11**

**StateName= C13**

**Click here** to learn how to define names in Excel.

⏩ Click the **Enter **button for the output.

**Step 2:**

⏩ To copy the formula now just use the **Fill Handle** tool.

**⏬**** Formula Breakdown:**

**➥**** INDEX(State,1,1)**

The **INDEX **function will return the value according to its relative row number 1 and column number 1. That is-

**“Arizona”**

**➥**** ROW(INDEX(State,1,1))**

Then the **ROW** function will find its original row number-

**{5}**

**➥**** ROW(State)-ROW(INDEX(State,1,1))+1**

As the upcoming **INDEX** function works for row number of a particular array, not for Excel row number, that is why we have to give the **INDEX **function the row number by applying this formula.** The output is-**

**{1;2;3;4;5;6;7}**

**➥**** IF(State=StateName,ROW(State)-ROW(INDEX(State,1,1))+1)**

Then the **IF **function will do the logic test for the value “Alaska”. If found then it will show the position number whether it will show **FALSE **and that will return as-

**{FALSE;FALSE;3;FALSE;FALSE;6;FALSE}**

**➥**** SMALL(IF(State=StateName,ROW(State)-ROW(INDEX(State,1,1))+1),B16)**

The **SMALL **function will show the lowest number among them which is-

**{3}**

**➥**** INDEX(Sales,SMALL(IF(State=StateName,ROW(State)-ROW(INDEX(State,1,1))+1),B16))**

Finally the **INDEX **function will extract the value according to the output of the **SMALL **function,that returns-

**{7832}**

**Read More: Index Match Multiple Criteria in Rows and Columns in Excel**

**Similar Readings**

**Excel INDEX MATCH to Return Multiple Values in One Cell****Excel INDEX-MATCH Formula to Return Multiple Values Horizontally****INDEX MATCH Multiple Criteria with Wildcard in Excel (A Complete Guide)****[Fixed!] INDEX MATCH Not Returning Correct Value in Excel (5 Reasons)****How to Match Multiple Criteria from Different Arrays in Excel**

**Formula 3: Extract Data Based on Duplicates in Two Columns with INDEX+MATCH**

In our last method, we’ll extract data based on duplicates from a column. I’ll extract the sales values for the states of Florida and Alabama. For that, we’ll use the **INDEX**, and **MATCH **functions.

**Step 1:**

⏩ Write the formula given below in **Cell C14**–

`=INDEX(C5:D11, MATCH($B14,C5:C11,0),2)`

⏩ Later, press the **Enter **button to get the result.

**Step 2:**

⏩ Finally, use the **Fill Handle** tool to copy the formula.

**⏬**** Formula Breakdown:**

**➥**** MATCH($B14,C5:C11,0)**

The **MATCH **function will find the relative position for the state “Florida” from the state column, which returns-

**{4}**

**➥**** INDEX(C5:D11, MATCH($B14,C5:C11,0),2)**

Finally, the **INDEX **function will extract the sales value according to row number 4 and column number 2 relative to the array **C5:D11. **That will return as-

**{2675}**

**Read More:** **How to Use INDEX-MATCH Formula in Excel to Generate Multiple Results**

## Conclusion

I hope all of the methods described above will be good enough to use INDEX+MATCH with Duplicate Values in Excel. Feel free to ask any questions in the comment section and please give me your feedback. Visit our website **Exceldemy.com** to explore more.

## Related Readings

**Examples with INDEX-MATCH Formula in Excel (8 Approaches)****How to Use INDEX MATCH Instead of VLOOKUP in Excel (3 Ways)****Index Function to Match and Return Multiple Values Vertically in Excel****IF with INDEX-MATCH in Excel (3 Suitable Approaches)****Excel INDEX MATCH with Multiple Criteria (4 Suitable Examples)****How to Use INDEX and Match for Partial Match (2 Ways)**

Hi, nice tutorial, but I am a begginer.

I would like to make excel table for ordinary tennis league, but if 2 teams are equal with same points than it should take into account their mutual match, so who won the match is higher ranking. So, I have 12 teams, namely:

Team 1

Team2

Team3

Team4

Team5

Team6

Team7

Team8

Team9

Team10

Team11

After entering the results for each round, let Excel itself sort the Teams in the following order:

a) Team with most points is highest ranking.

b) If 2 teams with the same nr. of points, the head-to-head is then watched and whoever won is higher ranking. If the teams have not yet played each other or have result for draw, then skip to c).

c) If the teams are still the same, then they are judged by goal difference – higher difference is higher ranking.

d) If the teams are still the same, then see who received fewer goals – who received less goals is higher ranking..

e If the teams are still the same, then see who scored more goals – who scored more goals is higher ranking.

f) If the teams are still the same, then they occupy the same ranking place.

Here is link for demo file:

https://docs.google.com/spreadsheets/d/1MvQz0USGOsceyaHEFGpgTNRPL9hxbGGR/edit?rtpof=true&sd=true

If you have any solution / formula, pls let me know

Regards

Hello Mat, thanks for your feedback. The problem you mentioned will need a complex formula. You will have to apply a formula like this:

=IF(SUM(–(MAX(AC2:AC12)=AC2:AC12))=1,INDEX(T2:AC12,MATCH(MAX(AC2:AC12),AC2:AC12,0),1)).

Hello Mithun,

I’m trying to do something similar but am having a difficult time applying. I hope you can help with the following:

I have a sheet with thousands of rows representing individual books. However, multiple individual items (books) can be a part of a single title. Each item has usage numbers. Also, each row has unique key for the catalog (catalog ID) and a unique key for the item (item barcode).

I’m looking for two formulas. One to count the number of items per title (according to catalog id). And another to sum the total item usage of all items on the same title.

I’ve included a sample sheet to help illustrate:

https://docs.google.com/spreadsheets/d/1IZOKV46uFo52R0w9dMvHoK1Luj-VHZpt/edit?usp=sharing&ouid=118360611201546687127&rtpof=true&sd=true

I’m looking for formulas to return the values seen in columns E and F.

Any help will be greatly appreciated!

Hello Mithun,

You have created some great instructions! So I’m reaching out for assistance for, possibly, the second time.

If you have already seen a comment by me today, I apologize for the duplication. I posted something earlier but there was no indication that a comment had been submitted. Given your expertise, I thought it would be worth trying again!

I have a sheet with thousands of rows, each row with data about a single item (book). Each item has information such as number of uses and the catalog title to which that item is associated. The same catalog title can be associated with multiple items (think of a multi-volume set of books, all with the same title). Each item has a unique key (item barcode) and each title has a unique key (catalog id).

I am looking for two formulas to help examine usage. One formula will simply count the number of items associated with each title (according to catalog id), returning that value to each row. The other formula will sum the total number of uses of each item associated with that same title, returning that value to each row.

I’ve included an example sheet to demonstrate:

https://docs.google.com/spreadsheets/d/1IZOKV46uFo52R0w9dMvHoK1Luj-VHZpt/edit?usp=sharing&ouid=118360611201546687127&rtpof=true&sd=true

On the example sheet, I’m looking for formulas to return the values in columns E and F.

Any help will be most appreciated!

Hi MICHAEL,

Thanks for your feedback.

To count the number of items associated with each title (according to to catalog id), use this formula: =COUNTIF($B$2:$B$27,B2)

And to sum the total number of uses of each item associated with that same title, use this formula: =SUMIF($B$2:$B$27,B2,$D$2:$D$27)

the duplicates in the first example seem wrong. The dups are being identified by states and Michigan is marked as a duplicate, but it is not. Alabama is a duplicate, but is tagged as original.