| .ado |
Adobe Photoshop Duotone Options File |
| .amp |
Adobe Photoshop Curves Map File |
| .acbl |
Adobe Color Book Legacy File |
| .abdata |
Adobe Bridge Data File |
| .aet |
After Effects Project Template |
| .ascs |
ActionScript Communication Server File |
| .ansym |
Adobe Edge Animate Library File |
| .adadownload |
Adobe Download Assistant Partial Download File |
| .antmpl |
Adobe Edge Animate Template File |
| .aglib |
Adobe Lightroom Library |
| .agmodule |
Adobe Lightroom Module |
| .agtemplate |
Adobe Lightroom Template |
| .agtoolkit |
Adobe Lightroom Toolkit |
| .a7l |
Authorware 7 Library |
| .a7d |
Authorware 7 Model |
| .aecache |
After Effects Cache File |
| .aegraphic |
Adobe After Effects Graphic |
| .aecap |
After Effects Text Template |
| .a3l |
Authorware 3 Library |
| .a4l |
Authorware 4 Library |
| .a3m |
Authorware 3 Macintosh File |
| .a3w |
Authorware 3 Windows File |
| .a4m |
Authorware 4 Macintosh File |
| .a4w |
Authorware 4 Windows File |