.zip: The most widely used and supported compression format, especially on Windows. 

.rar: A more powerful compression format than .zip, often offering higher compression ratios, but less widely supported natively. 

.7z: A more advanced compression format offering high compression and support for various compression methods. 

.gz: A compression format that uses the gzip algorithm, often used in conjunction with .tar archives (e.g., .tar.gz). 

.bz2: A compression format that uses the bzip2 algorithm, known for its good compression ratios. 

.tar.gz: A combination of the tar (tape archive) format and the gzip compression. 

.tar.bz2: A combination of the tar (tape archive) format and the bzip2 compression. 

.mp3: MPEG-1 Audio Layer 3, a widely used lossy audio compression format, known for its smaller file sizes and good quality. 

.wav: Waveform Audio File Format, a lossless, uncompressed format, offering high-quality audio but larger file sizes. 

.aac: Advanced Audio Coding, a lossy format that offers good audio quality with smaller file sizes compared to MP3. 

.flac: Free Lossless Audio Codec, a lossless format that provides high-quality audio without sacrificing file size. 

.ogg: Ogg Vorbis, an open-source, lossy format that offers good audio quality. 

.wma: Windows Media Audio, a lossy format developed by Microsoft. 

.m4a: MPEG-4 Audio, often associated with Apple devices and used for lossless audio compression. 

.alac: Apple Lossless Audio Codec, a lossless format developed by Apple

MP4: MPEG-4 Part 14, a widely used and compatible format for video and audio.

AVI: Audio Video Interleave, a format known for high quality but larger file sizes.

MOV: QuickTime Movie, developed by Apple for QuickTime Player and video editing.

WMV: Windows Media Video, a format developed by Microsoft for Windows Media Player.

MKV: Matroska Multimedia Container, a flexible, open-source container format.

WebM: Web Media, an open-source format optimized for web use, particularly HTML5 video.

FLV: Flash Video, a format associated with Adobe Flash Player and streaming platforms like YouTube. 

.exe: This is the most common executable file extension on Windows, indicating a 32-bit or 64-bit executable file. 

.com: This file extension was used for DOS (Disk Operating System) executable files. 

.bat: This extension indicates a batch file, which contains a series of commands that can be executed in sequence. 

.cmd: This extension is similar to .bat, but it is typically used for Windows command files that can be executed in the command line or using PowerShell. 

.apk: This is the file extension for Android Package files, which are used to install applications on Android devices. 

.bin: This extension can refer to a binary file, which is a generic term for a file that contains data in a format that is not human-readable. 

.wsf: This extension indicates a Windows Script file, which is a script that can be executed using the Windows Script Host.