Only you know how to decrypt. As of the beginning of the year I counted dozens of encrypted file methods.
So with only what you told, no.
So a while ago I encrypted some files on a USB, a few months later I had to fully wipe my PC now when going into the USB and looking at the encrypted files I can no longer view there contents nor decrypt them as the only user that has access no longer exists. Is there anyway I can recover the files? I sort of really need them.
Edit: I used the build in advanced attributes from file explorer

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