The "Get EDID" utility consists of 2 separate parts. The first part is implemented as a boot floppy, that gets EDID from the video card/monitor and writes it to consecutive sectors on the same floppy disk it booted from. The second part is implemented as a simple utility, and is used to copy the file from raw sectors on a floppy (or a floppy disk image) and creates a normal file.
2 Part 1 (Bootable Floppy)
The first part (the bootable floppy) must be installed "as is" on a 1440 KiB floppy disk, and then used to boot a computer capable of getting the EDID from the monitor. A file complying with the BCOS EDID File Format Specification is created, then stored on the floppy starting from sector 3 (the first 2 sectors are used for code, and isn't overwritten to allow the same floppy to be used multiple times).
There isn't much else to know about the first part...
3 Part 2 (File Copyer)
3.1 Command Line Syntax
With no command line arguments the utility will display it's help, which just lists command line arguments. There is only one command line argument - the name of the file or device to use as input.
The file will be copied to the current working directory. The file name will be derived from the manufacturer and product ID in the EDID, which is three letters, an underscore, 4 hexadecimal numbers, then the extension ".edid". For example, if the EDID came from a monitor made by ViewSonic, the resulting file might be called "VSC_591E.edid". This makes it relatively easy for the EDID files to be included in a Boot Image and used during boot (in case the video card is unable to get the EDID from the monitor).