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.

As the name implies, IMG files contain replicas of programs and other forms of data. The information in an IMG is compressed to allow more data to fit in a smaller package. They're especially helpful ...

A file with the "BKF" extension typically is a backup file created in Windows XP. The Windows XP backup utility adds ".bkf" to the end of files created with the native tool by default. The "SQZ" file ...