| anh | ActivTrak Net View History Data |
| ani | CRYSTALS Chemical Crystallography Data |
| anim | Autodesk Maya 3D Animation Data |
| anim | Unity 3D Animation Data |
| animations | Stardock SkinStudio Animations Data |
| anime | Anime Studio JSON Data |
| animeaction | Anime Studio Action Data |
| animebrush | Anime Studio Brush Data |
| animeexport | Anime Studio Export Profile Data |
| animestyle | Anime Studio Style Data |
| aniso | CRYSTALS Chemical Crystallography Data |
| anki | Anki Data |
| anl | Alphacam Nest List |
| anl | DB-MAIN Analysis Assistant Library Data |
| anl | XLIFF Document Settings Data |
| anme | Anime Studio Data |
| ann | ENVI Annotation Data |
| ann | King-FIX Data |
| ann | Windows Help Annotations |
| ann | Zemax Annotations Data |
| annot | Adobe Digital Editions Annotations Data |
| annot | FreeSurfer Annotation |
| ano | Vaa3D ANO Data |
| anp | Annotis Mail Data |
| ans | ANSYS Model Data |
| ans | HotDocs Answer |
| ansa | LS-OPT ANSA Morph Data |
| ansr | AnswerTool Answer Data |
| ant | calcAnt Saved Calculation Data |
| ant | Radio Mobile Antenna Definition |
| ant | Xilinx ISE ANT File |
| antibody | NovaFold Antibody Data |
| anv | ActivTrak Net View Data |
| anw | Anno Wallet Backup File |
| anx | HotDocs Answer |
