We can use Excel **OR function** to simultaneously test multiple logical conditions. For each argument, the OR function will give TRUE or FALSE. This article will step through the use of the OR function.

*Figure 1: Final result*

**Syntax of the formula**

**=OR(logical1, [logical2]….)**

**The parameters**

**Logical1-** refers to first condition or logical value to evaluate

**Logical2-** refers to second condition or logical value to evaluate. It is optional.

**Explanation**

We will get either of two results: If the argument is true and the condition met, the OR function will **return TRUE**. However, on the other hand, if the condition is not met, then the OR function will **return FALSE**.

This function can be used to test multiple conditions, up to 255 at a time.

**Using OR to extend functionality of IF function**

We can also use the OR function to extend the functionality of the IF function. To better understand this, consider the example below:

*Figure 2: Extending functionality of IF function*

**Array form of the OR function**

One can test all values in a given range against one condition by using the array form of the OR function. The test will return either TRUE if any cell in the given range certifies the condition given.

e.g.

**={OR(B2:BC20>100}**

**Notes**

The OR function will ignore any empty cell or cells with text values.

Again, if the range selected does not contain any logical values, the OR function will return #Value.

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