The Most Common File Types and File Extensions

Different files have different file extensions. There are many different file types and file extensions. This post introduces some common file types and extensions. Still, if you need to convert video or audio format for free, this tutorial also includes a guide.

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Common Audio File Types and File Extensions

• MP3 audio file – .mp3
• AAC audio file -.aac
• AC3 audio file – .ac3
• WAV audio file – .wav
• WMA audio file – .wma
• Ogg Vorbis audo file – .ogg
• MIDI audio file – .midi or .mid
• CD audio file – .cda
• AIF audio file – .aif

Common Video File Formats and Extensions

• MP4 or MPEG4 video file – .mp4
• 264 video file – .h264
• AVI video file – .avi
• MKV or Matroska Multimedia Container – .mkv
• MPEG video file – .mpeg or .mpg
• MOV or Apple QuickTime video file – .mov
• Apple MP4 video file – .m4v
• Adobe flash video – .flv
• 3GP video file – .3gp
• Windows Media Video file – .wmv
• DVD Video Object – .vob

Common Image File Types and Extensions

• JPEG image – .jpeg or .jpg
• PNG image – .png
• GIF image – .gif
• Photoshop or PSD image – .psd
• Adobe Illustrator image – .ai
• TIFF image – .tif or .tiff

Common Document File Types and Extensions

• Microsoft Word file – .doc or .docx
• PDF file – .pdf
• Text file – .txt
• Microsoft Excel file – .xls
• Microsoft Excel Open XML file – .xlsx
• Microsoft Excel file with macros – .xlsm
• Microsoft PowerPoint presentation – .ppt
• Microsoft PowerPoint slide show – .pps
• Microsoft PowerPoint Open XML presentation – .pptx

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How to Convert Video or Audio Format for Free

Sometimes if your device or the media player doesn’t support the target format, you can use a free converter to easily convert the video or audio to desired format.

MiniTool Video Converter is an easy and free video converter for Windows. You can use this tool to easily convert any video to another format, e.g. MKV to MP4, AVI to MP4, MP4 to MP3. It can convert video to video, convert video to audio, convert audio to audio, convert audio to video format.

This free converter also embeds a video download module. You can use it to easily download YouTube videos in MP4, WebM, MP3 or WAV format for offline playback.

Check how to use MiniTool Video Converter to convert video format or audio format below.

Step 1. Download and install MiniTool Video Converter on your Windows computer. Launch this software.

MiniTool Video Converter FreeClick to Download100%Clean & Safe

Click + icon on the main UI to select and load source video or audio file into this software.

Step 2. Click the Edit in the target section, and choose a file type like Video, Audio. You can choose Video and select MP4 or other desired formats as the output. You can also choose Audio and choose MP3 or other desired formats as the output.

Step 3. After that, click Convert button, and this smart converter will automatically convert the video or audio to target format at fast speed while keeping high quality.

Bottom Line

This post introduces some common file types and file extensions, and provides an easy free way to convert video or audio format.

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