1. How would I go about opening a file as hex?
2. How would I go about reading parts of the file as hex?
3. How would I go about editing parts of the file as hex?
4. How would I go about saving the file as hex?

Examples:

1. Open the file and not have things like a byte of 00 translate into a space and then when it is saved as a space to hex, it becomes the byte 20.

2. Reading the byte at a location other than the beginning of the file, like reading the byte at 0x1F.

3. Editing the byte at 0x2C when something in the program happens.

4. Saving the file as hex so that bytes like 00 do not become 20.