With your drive you can get tools to read NTFS drives in Mac OS: https://www.paragon-software.com/us/...e600980a18b8f9 (if you dig around there are free ones). Or, if you can figure out how to network share your windows drive that can work.
As for contacts, Mac Calendar and contacts should read the standard files from windows, but it tends to not fill in all the details as well, so there is an extent to which you still need to edit them.
Just one thing in the future, if you are sharing files between both, yes you need ExFAT, but the Mac OS file system allows more punctuation in file names, so after a while of being used to that, windows complains about the file names, I have this when syncing my Mac documents to onedrive for work, it always moans about my file names being too long or fancy :)