Lightroom is a popular photo editing software that can be used to create photos, videos, and slideshows. It can be used to edit photos, videos, and slideshows in different ways. Some lightroom files you may want to delete are the following: • Photos: These are the images that you take and store on your computer. You may want to delete these if you no longer need them or if you have upgraded to a newer version of lightroom. • Videos: These are the videos that you make and store on your computer. You may want to delete these if you no longer need them or if you have upgraded to a newer version of lightroom. • Slideshows: These are the slideshows that you make and store on your computer. You may want to delete these if you no longer need them or if you have upgraded to a newer version of lightroom.