九段编程参考资料，常用文件扩展名介绍
| EXTENSION | FORMAT |
|---|---|
| aac, adt, adts | Windows audio file |
| accdb | Microsoft Access database file |
| accde | Microsoft Access execute-only file |
| accdr | Microsoft Access runtime database |
| accdt | Microsoft Access database |
| template | |
| aif, aifc, aiff | Audio Interchange File format file |
| aspx | ASP.NET Active Server page |
| avi | Audio Video Interleave movie |
| or sound file | |
| bat | PC batch file |
| bin | Binary compressed file |
| bmp | Bitmap file |
| cab | Windows Cabinet file |
| cda | CD Audio Track |
| csv | Comma-separated values file |
| dif | Spreadsheet data interchange |
| format file | |
| dll | Dynamic Link Library file |
| doc | Microsoft Word document before |
| Word 2007 | |
| docm | Microsoft Word macro-enabled |
| document | |
| docx | Microsoft Word document |
| dot | Microsoft Word template before |
| Word 2007 | |
| dotx | Microsoft Word template |
| eml | Email file created by Outlook |
| Express, Windows Live Mail, | |
| and other programs | |
| eps | Encapsulated Postscript file |
| exe | Executable program file |
| flv | Flash-compatible video file |
| gif | Graphical Interchange Format |
| file | |
| htm, html | Hypertext markup language page |
| ini | Windows initialization |
| configuration file | |
| iso | ISO-9660 disc image |
| jar | Java architecture file |
| jpg, jpeg | Joint Photographic Experts |
| Group photo file | |
| m4a | MPEG-4 audio file |
| mdb | Microsoft Access database |
| before Access 2007 | |
| mid, midi | Musical Instrument Digital |
| Interface file | |
| mov | Apple QuickTime movie file |
| mp3 | MPEG layer 3 audio file |
| mp4 | MPEG 4 video |
| mp4 | MPEG 4 video |
| mpeg | Moving Picture Experts Group movie file |
| mpg | MPEG 1 system stream |
| msi | Microsoft installer file |
| mui | Multilingual User Interface |
| file | |
| Portable Document Format file | |
| png | Portable Network Graphics file |
| pot | Microsoft PowerPoint template |
| before PowerPoint 2007 | |
| potm | Microsoft PowerPoint |
| macro-enabled template | |
| potx | Microsoft PowerPoint template |
| ppam | Microsoft PowerPoint add-in |
| pps | Microsoft PowerPoint slideshow |
| before PowerPoint 2007 | |
| ppsm | Microsoft PowerPoint |
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