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How to check if the email address is valid or not in Excel?

Supposing, I have a list of tasks with start date and end date, now, I want to calculate the percentage of completion of the task based on today’s date as the following screenshot shown. How could you solve this job in Excel?

Check if the Email address is valid or not with formula

Check if the Email address is valid or not with formula

To check if the Email address is valid or invalid, you should apply the following formula.

1. Please enter or copy the below formula into a blank cell where you want to return the checking result:


2. Then, drag the fill handle down to apply this formula to other cells. You will get the following results, TRUE is indicated the Email is valid, and FALSE is invalid.

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Kann mir jemand diese Formel auf Deutsch schreiben? Ich schaffe das einfach nicht. Vielen Dank

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