Where can i get a link to dowload a file for updating cameraraw, loigtroom 5, to be able to read CR Canon RAW files ?
We need to know the Canon camera model?
Please refer the below support article for raw data in Lightroom.
If in case your Lightroom doesn't support the raw data anymore, you can use the DNG Converter 9.3 for converting the images to DNG and use it with existing version of Lightroom.
Let us know if that helps.