Starting at this address, about 90MB of data was copied into a new hex editor window. This is where the recovery hit a snag. Because the SD card was plugged into a Mac before, a bunch of data was ...

So if you need a portable hex editor that can be ran from a USB stick or SD card, XVI32 is a perfect choice. However, I did find one tiny portability issue other users of Windows 8 may experience: ...

Developer [WerWolv] bills it specifically as the hex editor of choice for reverse engineering, it’s released under the GPL v2, and runs on Windows, Linux, and macOS.