I have some files that I know I have edited in Lightroom. Unfortunately, I have a few catalogs and cannot find the corresponding catalog. I have the filenames of the images and even some related xmp files. Is it possible to locate the catalog? (Yes, I will be smarter about organising my catalogs in the future)!
The only way I know of to find the phtoos in Lightroom is to use your operating system's search feature to search for all files whose name ends with .LRCAT, and then open each one of them by double-clicking on it to see if the desired photos are in there.
If you are going to be smarter about organizing catalogs, then please merge all of your catalogs into one. Then the problem of finding the right catalog no longer exists, and all you have to do is then search by file name in your one catalog, for the desired photos.