If you’re trying to open an image from a camera that is not officially supported by Luminar Neo, the best workaround is to convert the image to a DNG file. You may be able to create DNG files in-camera. Alternatively, you can install the free DNG Converter from Adobe.
Luminar Neo fully supports DNG files, including DNG files created by cameras and those created with the DNG Converter utility from images in another raw format.
To see a full list of supported cameras, visit Supported Cameras