My last film camera was an APS type where you dropped the film cartridge in the camera, shut the back and film was automatically wound on to the start point. When the film was finished it was automatically wound back into the original cartridge ready for processing.

When you got the developed film back from processing the negatives were still in the original cartridge. Very convenient for protecting them.

I am gradually digitising my photos and I would like to access the negatives from these APS films but I don't want to destroy anything as I wish to keep the originals.

My question is: can you roll out the negatives so they can go through a film "scanner" and then get them back into the original cartridge? If so, how?

I realise I can scan prints on a flatbed scanner which is fine where I have prints, but that is not always the case as many of the prints have been lost. However, I still have the negatives.