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: Right-click the file and select Properties (Windows) or Get Info (Mac). This may reveal the "EXIF data," such as the camera used, the date taken, or even GPS coordinates.

: Systems like iCloud or Google Photos use these strings to keep track of billions of files without they ever getting "confused" with one another. C1B93F2D-5559-4D77-A0BA-6CA147E4B15A.jpeg

Because this filename is unique to a specific person's local storage or private upload, I cannot "see" the image content itself. However, here is a feature look at the behind such a filename: 1. The Anatomy of a UUID : Right-click the file and select Properties (Windows)