I mean not just factory data. Your real load data. When you create your load what do you record it on?
I have an old "Project Planner" notebook with lined pages, for reloading recipes for each firearm I load for, an inch thick and a three ring binder about three inches thick to store everything I deem important, concerning firearms I've worked on, owned etc.
I have another personal manual for the various powders I have on hand, with their appx burn rates and quantities. If it's possible, the types are cross referenced with information indicating which manual has the pertinent information on that type of powder. The surplus powders can be quite old an only the older reloading manuals have the information I need in them.
Surplus powders, such as WC852 which is basically identical to H450 but is a bit faster than IMR4831. The manuals that list H450 are anywhere from 45-60 years old.
Unlike Ganderite, my memory needs a hand on occasion and these tidbits of information come in very handy.
Many of the recently developed powders are rehashes of very old recipes that have been enhanced with different coatings to make them less temperature sensitive or burn a bit more consistently, or very slightly extend the pressure curve safely, thereby getting better velocity.
OP, you definitely need to maintain a "hard copy" manual of your own making. Believe me, storing it digitally is a good way to lose that very valuable to you information.
I far prefer hard copy manuals over a laptop or IPad on my reloading bench or around my machines. The information in them is permanent and as long as the lights are on, all is well.
One thing I've noticed with many of the younger people I've been teaching to reload recently, they can read and text at lightspeed but they can't write and barely print.
If you insist on keeping your info stored electronically, just be careful it's retrievable or doesn't get deleted or lost when the device is replaced.