I had my catalog saved to an external hard drive that I reformatted, that I saved new data to. I did not realize I deleted my original images by mistake and never saved them after they were imported to Lightroom. I can still view them and have the xmp. files. Is there any way to get these images back.
If you don't have backup copies of the original files, they are gone forever.
There are some LR plug-ins available that can pull out some lower-res copies from the preview folders, which would give you something better than nothing.