LEFT Function
Returns a specified number of characters from the start of a given text string
Returns a specified number of characters from the start of a given text string
The LEFT Function is categorized under TEXT functions. The function will return a specified number of characters from the start of a given text string.
In financial analysis, the LEFT function can be useful if we wish to extract characters from the left side of a text. Generally, it is used by combining it with other functions such as VALUE, SUM, COUNT, DATE, DAY, etc.
=LEFT(text,[num_chars])
The LEFT function uses the following arguments:
As a worksheet function, LEFT can be entered as part of a formula in a cell of a worksheet. To understand the uses of the function, let us consider an example:
Suppose we wish to extract certain characters from the data below:
The results in Excel are shown in the screenshot below:
The LEFT function always returns a text string, even though it contains digits and looks like a number. It is important if we wish to use the result of the function within other functions or formulas.
Using the VALUE function, we can ensure that the number format is kept and the result is not converted to text.
Let us assume we wish to separate the numbers from the data below:
We wish to extract the first 3 characters, that is, numbers. The formula to use will be =VALUE(LEFT(B5,3)) as shown below:
We get the results below:
As we can see in the screenshot above, the numbers in column B obtained with a VALUE LEFT formula are right-alighted in the cells, as opposed to left-aligned text in column A. Since Excel recognizes the output as numbers, we can perform SUM or AVERAGE operations on the values, find the min and max value, or do other calculations.
For example, 01/01/1980 is represented by the number 29221, so applying the LEFT function to a cell containing the date 01/01/1980 (and requesting that 3 characters be returned) will result in a returned value of “292.” If we wish to use LEFT on dates, we can combine it with the DAY, DATE, MONTH, or YEAR functions. Otherwise, we can convert the cells containing dates to text using Excel’s Text to Columns tool.
Click here to download the sample Excel file
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