| 9xb | TI-92 Plus Calculator Backup Data |
| 9xc | TI-92 Plus Complex Variable Data |
| 9xd | TI-92 Plus Graph Database |
| 9xe | TI-92 Plus Expression Data |
| 9xf | TI-92 Plus Function |
| 9xg | TI-92 Plus Complex Group Data |
| 9xi | TI-92 Plus Bitmap |
| 9xk | TI-92 Plus Application |
| 9xl | TI-92 Plus List Data |
| 9xm | TI-92 Plus Matrix Data |
| 9xn | TI-92 Plus Number Data |
| 9xp | TI-92 Plus Program |
| 9xq | TI-92 Plus Certificate Data |
| 9xr | TI-92 Plus Lab Report Data |
| 9xs | TI-92 Plus String Data |
| 9xt | TI-92 Plus Calculator Text Data |
| 9xu | TI-92 Plus OS Update |
| 9xx | TI-92 Plus Calculator Macro Data |
| 9xy | TI-92 Plus Equation Data |
| 9xz | TI-92 Plus Assembly Program |
| a | STK Attitude |
| a1wish | Audials One Wishlist |
| a26 | Atari 2600 ROM Image |
| a2c | Alice v2 Object |
| a2desktop | Aston 2 Desktop Theme File |
| a2m | SAM Alignment Data |
| a2menu | Aston 2 Menu Theme File |
| a2panel | Aston 2 Panel Theme File |
| a2theme | Aston 2 Theme File |
| a3c | Alice v3 Class |
| a3e | Autodesk Showcase Environments |
| a3g | Photo! 3D Album Gallery |
| a3s | Autodesk Showcase 3D Scene |
| a52 | Atari 5200 ROM Image |
| a5d | Macromedia Authorware Model |