Specfile is a robust data encryption application that integrates seamlessly with the Windows operating system. It allows users to encrypt files, folders, and documents of various formats using RSA-4096 and AES-256 encryption algorithms. The application provides one-click encryption functionality through the context menu and supports sending encrypted registered letters. Specfile enables offline encryption and decryption, ensuring data security without requiring an internet connection. It offers flexible storage options, including computer drives, cloud storage, email inboxes, and external storage devices. The application is designed to help users meet GDPR requirements for data protection, particularly in healthcare and business environments.