Files that contain the .dlc file extension are created by the Java application. These files are actually container files that store a variety of downloadable content that has been downloaded to your computer with the JDownloader software. The JDownloader application is used to manage file downloads when a user is downloading a program from the Internet to their hard drive. The contents of these DLC files are usually encrypted.
The .dlc file extension is also sometimes used by the 3D Studio Max software application. These DLC files contain the animation controller files for the 3D Studio Max software. These files control the animation process when creating a file within the software.
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If you have additional information about the DLC file format or software that uses files with the DLC suffix, please do get in touch - we would love hearing from you.