| FIle Extension | File Type |
| DOC or DOCX | Microsoft Word document |
| PPT or PPTX | PowerPoint presentation file |
| XLS or XLSX | Microsoft Excel Spreadsheet |
| PUB | Microsoft Publisher document |
| File Extension | File Type |
| AIFF or AIF | Audio Interchange File Format |
| AU | Basic Audio |
| AVI | Multimedia Audio/Video |
| MID or MIDI | MIDI Sound |
| MOV or QT | QuickTime Audio/Video |
| RA | RealAudio |
| WAV | Windows Sound |
| File Extension | File Type |
| RTF | Rich Text Format |
| TXT | ASCII Text |
| File Extension | File Type |
| STL | SteroLithography |
| GCODE | comes for fact that most printing commands start with the letter G |
| FIle Extension | File Type |
| AVI | Audio Video Interleave |
| FLV | Flash Video Format |
| WMV | Windows Media Video |
| MOV | Apple QuickTime Movie |
| MP4 | Moving Pictures Expert Group 4 |
