The April 18 tax deadline is near. If you're not ready, file for an automatic extension to Oct 16. Remember, an extension of time is not an extension to pay. So to avoid penalties, include a payment.

Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.

Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...