File extension is a suffix at the end of computer files. Operating system uses extensions to identify application associations. File extensions are separated by a dot in complete file names
File extension is a three-letter code at file end indicating type. Windows uses extensions to recognize application-file relationships. Common extensions include DOC/DOCX for Word, XLS/XLSX for Excel
Media files include pictures, music, audios, videos, and documents. Digital files become readable after encoding during saving process. Not all media formats play on all devices
File extensions identify file types and associate programs with them. Default Windows 10 hides file types, posing security risks. Malware can disguise executables as documents or pictures
File extensions indicate the type of file, typically 3-4 digits long. Windows doesn't show file extensions by default. File extensions help identify safe documents and programs. Hidden extensions make it difficult to distinguish between legitimate and malicious files
File extensions identify file types and help identify malware. Without extensions, malware files can be mistaken for legitimate documents. Extensions show full file names, making malware detection easier