| Akamai Download Manager Format | |
| Akamai | |
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File with a .DLM extension contains an incomplete file downloaded with the Akami Download Manager (DLM) software. This extension supersedes the original extension until the file is not downloaded completely, than it is replaced back again.
If the file downloading is completed and the extension has not changed yet, it can be done manually. The DLM software is usually used for effective and secure download of large files.
Mac OS
| .aawdef | Ad-Aware Definitions Format |
| .abr | Adobe Photoshop Brush Format |
| .ac$ | AutoCAD Undo Info Format |
| .acc | DR DOS - ViewMax Format |
| .acl | Microsoft Office Automatic Correction List |
| .acs | Microsoft Agent Character Structured Storage Format |
| .ad | After Dark Screen Saver Format |
| .add | Microsoft Dynamics AX Developer Documentation Format |
