Windows 10 not recognized mac high sierra (APFS system) partition
Solution 1:
Currently there is no way to read APFS partitions with the tools provided by Apple's Boot Camp drivers or any other tool for Windows.
See also Paragon's answer regarding this topic.
Solution 2:
A couple more that can open APFS on Windows are UFS Explorer and TransMac. Both are read only. Have not found any that can write.