Notepad++ Search For 3 Character -

I have a huge text file with different names. How do I search for names, which contain only 3 characters or three Are the characters long? Press

Ctrl + F and enable regular expression detection Search Now:

 < Code> [^ azza-jed] [azza-jed] [azza-jed] [azza-jade] [^ azza-jade]  

It will basically search:

  [letter letter] 3 * [letter character] [letter letter]  

Edit: As you said If so, how would you like to search for numbers:

  [^ a-za-z] [a-za-z] [AZA-Z] [ E-za-z] [^ azza-jade]