When a blob is uploaded into a property field, CoreMedia Studio detects an appropriate MIME type based on name and content of the uploaded file. This is done with the help of the mimeTypeService bean, which is based on Apache Tika. This service is able to detect many common file types. If the file type is unknown, the MIME type suggested by the uploading browser will be used.

To add file types which are not detected correctly, the configuration of the mimeTypeService bean must be customized. See the bean definition reference inside the CAE developer manual for more information.