Not something for an amateur, I think. I googled CONVERT MICROFILM and got some interesting hits. Have a look.

The easy part is scanning those pics to bitmap or jpg-format. All you need: a scanning machine and a large hard disk. And - of course - a good backup medium. 1 bitmap = 5 MB. 100.000 bitmaps = 500.000 MB = 500 GB. That's doable.
The difficult part: OCR to make it into DATA in stead of PICTURES.

Kees