How to open Apple iPhoto data .apdetected files
Have you had trouble opening the apdetected file on your computer? What are apdetected files? We explain what they are and recommend software that we know will open them.
What is apdetected file?
Files with apdetected file extension might be found as some kind of indexing files from Apple iPhoto (Apple Photo) application for Mac OS X / macOS.
Apple iPhoto data description
The apdetected file extension appears to be mainly related to Apple iPhoto, a digital photo editing software for Mac OS X operating system and used for one of its file types. iPhoto was replaced by Apple Photos app.
These apdetected files are generated during photo importing, perhaps for indexing purposes.
Suggested software to open apdetected file

iPhoto
Photo management app for Mac OS X