a four-stringed musical instrument of the violin family, slightly larger than the violin; a tenor or alto violin. 2. a labial organ stop of eight-foot or four-foot pitch, giving tones of a penetrating stringlike quality. Origin of viola1. Italian.
PPT is a file extension for a presentation file format used by Microsoft PowerPoint, the popular presentation software commonly used for office and educational slide shows. All text images, sound and video used in the presentation are contained in the PPT file.
CRT is a file extension for a digital certificate file used with a web browser. CRT files are used to verify a secure website's authenticity, distributed by certificate authority (CA) companies such as GlobalSign, VeriSign and Thawte. CRT files allow a web browser to connect securely using the Secure Sockets Layer protocol. CRT files can be viewed by clicking the lock icon within your web browser. MIME type: application/x-x509-ca-cert, application/pkix-cert, application/keychain_access, application/x-x509-user-cert. Learn more about .CRT files: SearchSecurity.com has collected news and learning resources about digital certificates.