How do I transfer folders from Windows PC to iPhone 15 Pro?
I have always used Windows on my PC and had an Android phone. My sister recently got me an iPhone 15 Pro and added a line to her account for me. I spent a lot of years putting together a large family genealogy database. On Android I used GedStar Pro which is not available for ios. What i could find and purchased was in the Apple store ends up saying Family Tree 11 but had a different name in the app store.
I have a lot of pictures and texts organized in folders but have found no way to transfer folders to the iPhone. I connected my iPhone to my computer via a usb cable and quickly learned I apparently can't transfer files to it with windows explorer. Next I found articles on the internet that said to use iTunes but again I can't seem to be able to transfer a folder with it. So I installed the apple devices app in windows and the same result.
Is there anyway to transfer folders to an iPhone? I can't attach a folder in my email or I'd try that way as that was how I got my contacts from my Android phone to the iPhone.
I am a COMPLETE novice at anything Apple. Your help would be greatly appreciated!
[Re-Titled by Moderator]
iPhone 15 Plus, iOS 18