## Count unique and duplicate numbers in a closed workbook

*Article last updated on March 13, 2018*

Here is a picture of the closed workbook. There can´t be any blank cells or text values in your range.

As you can see, there are five unique distinct values (1, 2, 3, 5 and 6) and one duplicate value (3).

### How to count unique and duplicate numbers from a closed workbook

**Formula in B1:**

Don´t forget to change path to your closed workbbook.

**Formula in B2:**

Don´t forget to change path to your closed workbbook

### Evaluate formula

If I try to evaluate formula I get som strange results. A lot of #ref errors but the final result is correct.

### Functions in this article:

**IF(**logical_test;[value_if:true];[value_if_false]**)
**Checks whether a condition is met, and returns one value if TRUE, and another value if FALSE

**SUM(**number1,[number2],**)
**Adds all the numbers in a range of cells

**FREQUENCY**(data_array, bins_array)*
*Calculates how often values occur within a range of values and then returns a vertical array of numbers having one more element than Bins_array

*.*

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