Counting the Number of Characters in a Sentence

Maybe when you are asked to write a sentence by your boss at work, or who else was going to take a job test, there is one condition that is Compose Your Work Experience, but not exceed 250 characters. While you yourself have no idea, how many words you have posted.In excel there is a formula that can be used to calculate the number of characters from the sentence you write, as for the formula:=