GetFile is a cute window, 2.0 x 0.5 inches, for a quick search of Files. Type whatever you remember of a word or two from the File name. 3-6 characters suffice to reach the File. Matching Files show up in tandem with each character typed.
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GetMail Nu is a tiny window for fast search of Outlook emails. Type a few letters of whatever you remember - subject, content, sender, attached File's name, etc. 3-7 letters suffice. Matching emails/contacts show up in tandem with each letter typed.