XBoot is not available for Mac but there are some alternatives that runs on macOS with similar functionality. The best Mac alternative is balenaEtcher, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to XBoot and five of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to XBoot are UNetbootin (Free, Open Source), ROSA Image Writer (Free, Open Source), Deepin Boot Maker (Free, Open Source) and iSeePassword WizISO (Paid).
WizISO is the only reliable burning image tool with no demerits at all. Supports Windows and Mac OS. There 2 ways you can create a bootable disk from an ISO file: USB and DVD/CD and provides 4 types of file format: FAT, FAT 32, exFAT, NTFS, etc.