What are the common file formats

A file format refers to a specific way and structure used to store and represent information. Different file formats serve different purposes and needs. With the advancement of science and technology and the development of information technology, there are many types of file formats. Some common file formats and their characteristics are introduced below.

1. Text file format (.txt, .doc, .pdf): Text file format is one of the most basic file formats. .txt is a plain text file, containing only text characters and no formatting. .doc is a Microsoft Word document format that can contain text, images, and formatting. .pdf is a portable document format that can maintain the original format and layout of the file and is not easy to modify. It is suitable for sharing and printing of electronic documents.
2. Image file formats (.jpeg, .png, .gif): Image file formats are used to store and display images. .jpeg is a common lossless compressed file format suitable for photos and high-resolution images. .png is a lossless compressed image format that supports transparent backgrounds and is suitable for icons and graphics. .gif is a format that supports dynamic images and simple animations, suitable for simple graphics and emoticons.
3. Audio file formats (.mp3, .wav, .aac): Audio file formats are used to store and play music and sounds. .mp3 is a lossy compressed audio format that maintains high sound quality at a smaller file size and is suitable for music players and network transmission. .wav is a lossless audio format that is not compressed and has good sound quality. It is suitable for audio editing and professional recording. .aac is an advanced audio encoding format with higher sound quality and better compression performance than mp3, and is suitable for streaming media and mobile devices.
4. Video file formats (.mp4, .avi, .mov): Video file formats are used to store and play movies and videos. .mp4 is a common video file format with high compression performance and good audio-visual effects. It is widely used in online video and movie playback. .avi is a multimedia container format that supports multiple encoding technologies and audio formats and is suitable for video editing and archiving. .mov is a video format developed by Apple and suitable for storing and playing QuickTime movies.
5. Compressed file format (.zip, .rar, .tar): Compressed file format is used to compress multiple files and folders into one file, reducing storage space and transmission time. .zip is a common compressed file format that is generally supported by Windows operating systems. .rar is a unique compressed file format of WinRAR software, with high compression ratio and compression speed. .tar is a packaging file format that can package multiple files and directories into one file. It is commonly used in Linux systems.

In addition to the common file formats mentioned above, there are many other file formats, such as spreadsheet files (.xlsx, .csv), database files (.mdb, .sqlite), and program files (. exe, .dll, .jar), etc., they all have their own characteristics and uses. When working with files, choosing the appropriate file format is an important part of ensuring that your files are stored and transferred correctly. The choice of file format should also consider factors such as compatibility, file size, and security to meet different needs and application scenarios.

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