| 1. | .ava | Publication (Avagio) |
| 2. | .avatar | Avatar data |
| 3. | .avb | AntiViral Toolkit Pro Bases ◊ Character file (Microsoft Chat) |
| 4. | .ave | Avenue script (ArcView) |
| 5. | .avi | Movie or sound (Audio Video Interleave file) |
| 6. | .avl | Device library file ◊ legend template file (ODB format) (ArcView) |
| 7. | .avp | palette file (ODB format) (ArcView) |
| 8. | .avr | Sound (Audio Visual Research file format) |
| 9. | .avs | Application Visualization System (animation) ◊ Bitmap graphics (AVS X image file) |
| 10. | .avt | Avatar-coding files (A3E) |
Top 10 
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