| .ACB | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Color Book File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ACF | Valve | Arquivos de jogos | Steam Application Cache File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ACO | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Color Swatch File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ACV | Adobe Systems Incorporated | Arquivos de configuração | Photoshop Curves File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ADO | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Duotone Options File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AFX | Auto FX Software | Arquivos de imagem Raster | Auto FX PhotoGraphic Edges Image | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AHS | Adobe Systems Incorporated | Arquivos de configuração | Adobe Halftone Screen File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AHU | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop HSL File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AI | Adobe Systems Incorporated | Arquivos de imagem vector | Adobe Illustrator File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AI3 | Adobe Systems Incorporated | Arquivos Gráficos | Generic Encapsulated PostScript Graphic Format File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ALV | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Levels File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AMP | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Curves Map File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AMS | Adobe Systems Incorporated | Arquivos de configuração | Adobe Monitor Setup File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .API | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Inks File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ARW | Sony | Arquivos Câmera Raw | Sony Digital Camera Image | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ASP | Microsoft Corporation | Arquivos Web | Active Server Page | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ASR | Adobe Systems Incorporated | Arquivos Web | ActionScript Remote Document | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AST | Apple | Arquivos de dados | ClarisWorks Assistant File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ASV | MakeMusic, Inc. | Arquivos de cópia | Finale Auto-save File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ATF | Molecular Devices | Arquivos de dados | Axon Text File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .ATN | Adobe Systems Incorporated | Arquivos de configuração | Photoshop Actions File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .AXT | Adobe Systems Incorporated | Arquivos de configuração | Adobe Photoshop Extract File | Adobe Photoshop CC | Adobe Systems Incorporated |
de 1 
