The excel **INDEX** function is used to find a value in a specified array or one/multiple cell ranges. This article will tell you how to use the excel index function to find data with some examples.

### 1. Excel INDEX Function Syntax.

- The excel
**INDEX**function has the below function syntax.INDEX(array, row_num, [column_num]) or INDEX(reference, row_num, [column_num], [area_num])

- The
**INDEX**function has 3 or 4 arguments, the first argument is an**array**or**cell ranges reference**. - The
**cell ranges reference**can contain one or multiple cell ranges such as**(A1:B6, E1:F6, I1:J6)**. - The second argument
**row_num**specifies the row number of the returned element located in the array or cell range. - The third argument
**column_num**specifies the column number of the returned element located in the array or cell range. - If the first argument is a multiple cell ranges reference, then the fourth argument
**area_num**points out which cell range in the multiple cell ranges is used to locate and return the value. - If you pass
**0**to the**row_num**argument, then it will return the entire column data specified by the**column_num**argument. - If you pass
**0**to the**column_num**argument, then it will return the entire row data specified by the**row_num**argument.

### 2. Excel Index Function Examples.

#### 2.1 Using Excel Index Function To Get Data From Array Example.

- Input the formula
**=INDEX({1,2,3;4,5,6;7,8,9},0,3)**in cell**A1**and press enter key, then it will display the data**3,6,9**in column cell range**A1:A3**. - Input the formula
**=INDEX({1,2,3;4,5,6;7,8,9},3,3)**in cell**A1**and press enter key, then it will display the data**9**in cell**A1**. - Input the formula
**=INDEX({1,2,3;4,5,6;7,8,9},3,0)**in cell**A1**and press enter key, then it will display the data**7,8,9**in row cell range**A1:C1**. - Input the formula
**=INDEX({1,2,3;4,5,6;7,8,9},3)**in cell**A1**and press enter key, then it will display the data**7,8,9**in cell range**A1:C1**. - Input the formula
**=INDEX({1,2,3,4,5,6,7,8,9},6)**in cell**A1**and press enter key, then it will display number**6**in cell**A1**.

#### 2.2 Using Excel Index Function To Get Data From Cell Ranges Example.

- Below is the example data cells.

**A****B****C****D****E****F****G****H****1**1 4 7 10 13 16 **2**2 5 8 11 14 17 **3**3 6 9 12 15 18 - There are 3 rows and 8 columns in the above data cells.
- Column
**C**and**F**are 2 empty columns. Now we will use the excel**INDEX**function to get the element in the above data cells. - The formula
**=INDEX(A1:B3,1,0)**will return the first row in cell range**A1:B3**, it will return the cell range**A1:B1**which contains the number**1,4**. - The formula
**=INDEX(A1:B3,1,1)**will return the first cell**A1****1**. - The formula
**=INDEX(A1:B3,0,1)**will return the first column in cell range**A1:B3**, it will return the cell range**A1:A3**which contains the number**1,2,3**. - The first argument of the
**INDEX**function can be multiple cell ranges such as**(A1:B3, D1:E3, G1:H3).** - And in this case, you should pass the fourth argument
**area_num**to point out which cell range is used to find the cell value by the**row_num**and**column_num**address. - For example, the formula
**=INDEX((A1:B3, D1:E3, G1:H3), 0,1,2)**will return the first column in the cell range**D1:E3.** - This is because the last argument (
**area_num**) is**2**in the above formula, then it will use the second cell range in the first argument**(A1:B3, D1:E3, G1:H3)**. - In this example, the above formula will return the column cell range
**D1:D3**which contains the number**7,8,9**. - Please note, if you use the formula
**=INDEX((A1:B3, D1:E3, G1:H3), 0,3,2)**, then it will throws the**#REF!**error, this is because the cell range**D1:E3**only contains 2 columns but the above formula require the third column in cell range**D1:E3**.