| .APF | Adobe Systems Incorporated | 不常见的文件 | Adobe Profile File | Sony Ericsson PC Suite | Sony Mobile Communications |
| .COPY | Sony Mobile Communications | 音频文件 | Sony Ericsson Protected Content File | Sony Ericsson Mobile Phones | Sony Mobile Communications |
| .DBK | Sony | 备份文件 | Sony Ericsson Mobile Phone Backup File | Sony Ericsson PC Suite | Sony Mobile Communications |
| .DCF | Sony Mobile Communications | 音频文件 | DRM Content Format File | DRM Packager | Sony Mobile Communications |
| .DM | Sony Mobile Communications | 3D图像文件 | DRM Delivery Message | DRM Packager | Sony Mobile Communications |
| .DR | Sony Mobile Communications | 不常见的文件 | DRM Rights Object | DRM Packager | Sony Mobile Communications |
| .ECS | Sony | 备份文件 | Sony Ericsson Mobile Phone Backup File | Sony Ericsson PC Suite | Sony Mobile Communications |
| .EMY | Sony | 音频文件 | eMelody Ringtone File | Sony Ericsson Mobile Phones | Sony Mobile Communications |
| .FL | Microsoft Corporation | 游戏文件 | Freelancer Saved Game File | DRM Packager | Sony Mobile Communications |
| .HID | Sony | 设置文件 | Sony Ericsson Remote Settings File | Sony Ericsson PC Suite | Sony Mobile Communications |
| .MBN | Samsung Electronics | 系统文件 | Multi Boot Image | Sony Ericsson Mobile Phones | Sony Mobile Communications |
| .QCA | Sony Mobile Communications | 数据文件 | Ericsson Phone Doubler Quick Call Data | Ericsson Phone Doubler Quick Call | Sony Mobile Communications |
| .QCALL | Sony Mobile Communications | 数据文件 | Phone Doubler Quick Call File | Ericsson Phone Doubler Quick Call | Sony Mobile Communications |
| .S7S | Sony | 数据文件 | Sony Ericsson S700i Phone Firmware Data | Sony Ericsson Mobile Phones | Sony Mobile Communications |
| .SSW | Sony Mobile Communications | 不常见的文件 | Sony Ericsson Firmware File | SETool2 | Sony Mobile Communications |
| .THM | Sony | 不常见的文件 | Sony Ericsson Mobile Phone Theme File | Sony Ericsson Theme Creator | Sony Mobile Communications |
| .VNT | Sony | 文本文件 | Sony Ericsson Mobile Phone vNote File | Sony Ericsson Note Creator | Sony Mobile Communications |
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