How to connect a hard drive (with NTFS) to Android phone?

I have a Samsung device and I want to connect an external hard drive to it with OTG but the problem is the hard drive isn't readable om my phone. I searched the internet for a solution and I found a tutorial that says I have to convert the filesystem of the hard drive from NTFS to FAT but the problem is there is no tutorial for converting NTFS to FAT (not FAT32) because FAT32 isn't readable on my Android device either. So can you please help me to make my external hard drive readable on my Android device?