How to find missing values with COUNTIF R.Admin 7 years ago How to find missing values with COUNTIF # Share this:Print Excel Tip : How to Generate Unique Usernames using the IF() and COUNTIF() FunctionsDateFebruary 4, 2016In relation toAdvanced Excel TipsHow to Count only Positive values in a given rangeDateJuly 16, 2014In relation toExcel TipsFind max unique value from a range that have duplicate numbers and blanksDateSeptember 8, 2014In relation toExcel Tips