# HLOOKUP Function

The HLOOKUP function is one of the lookup and reference functions. It is used to perform the horizontal search for a value in the top row of a table or an array and return the value in the same column based on a specified row index number.

The HLOOKUP function syntax is:

HLOOKUP (lookup-value, table-array, row-index-num[, [range-lookup-flag]])

where

lookup-value is a value to search for.

table-array are two or more rows containing data sorted in ascending order.

row-index-num is a row number in the same column of the table-array, a numeric value greater than or equal to 1 but less than the number of rows in the table-array.

range-lookup-flag is an optional argument. It is a logical value: TRUE or FALSE. Enter FALSE to find an exact match. Enter TRUE to find an approximate match, in this case if there is not a value that strictly matches the lookup-value, then the function will choose the next largest value less than the lookup-value. If this argument is absent, the function will find an approximate match.

Note: if the range-lookup-flag is set to FALSE, but no exact match is found, then the function will return the #N/A error.

To apply the HLOOKUP function,

1. select the cell where you wish to display the result,
2. click the Insert function icon situated at the top toolbar,
   or right-click within a selected cell and select the Insert Function option from the menu,
   or click the icon situated at the formula bar,
3. select the Lookup and Reference function group from the list,
4. click the HLOOKUP function,
5. enter the required arguments separating them by comma,
6. press the Enter button.

The result will be displayed in the selected cell.