You can see that we don't have a dot (.) on the list and this is why we get TRUE for the string that contains dot. H contains any of these, we set it's value to False. I have defined 0 to 9, A to Z, a to z and " " (space). We tell VBA to check if ch contains any of the defined values. We use the select case statement to check what the ch variable contains. The Mid function extracts one character at a time from string and stores it into ch variable. We are iterating through all the characters of the string using the For loop and mid function of VBA. But why so? Let's examine the code to understand. When you copy the formula down it shows FALSE for B14 string and so on.īut strangely it shows TRUE for the last string "". It returns TRUE for the first string since it contains a special character. Write the below formula in cell C2: =ContainsSpecialCharacters(B13) Go to the worksheet in the workbook that contains the strings that you want to check. Function ContainsSpecialCharacters(str As String) As BooleanĬase "0" To "9", "A" To "Z", "a" To "z", " " Copy the code below and paste it into the module. String: The string that you want to check for special characters.įor this formula to work, you will need to put the code below in the module of your workbook. Generic Formula =ContainsSpecialCharacters(string) If it does not find any special characters it will return FALSE. The below formula will return TRUE if any cell contains any characters other than 1 to 0 and A to Z (in both cases). So how do we do this in Excel? How can we know if a string contains any special characters? Well, we can use UDF to do so. We can find the special characters that are on the keyboard by manually typing but you can't know if there are symbols in the string or not.įinding any special characters can be very important for data cleaning purposes. So if you want to know if a string contains any special characters, you will not find any Excel formula or function to do so. We know that TRIM and CLEAN Excel functions are used to clean up unprintable characters and extra spaces from strings but they don't help much in identifying strings containing any special character like or ! etc.
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