First we need to have 1 raspberry pi3 model B, a 32GB usb stick, and a micro-SD card with RaspBian Installed.
The micro-SD will be used to set the raspberry pi3 in UsbMode.
This is official page on how to set the usbMode click here
Decompress the .zip file you downloaded, Sgneep Box was compressed with 7Zip(7Zip official page)
Download and install win32 disk imager (official site)
Run Win32DiskImager in windows OS
1- Ensure the Device drop down box has the drive your card is insered into.
2- Press the folder button and select sgneepbox_v1.2018.img
3- Press Write Button
Wait for Win32 Disk Imager has finished, remove the usb stick and insert it into your raspberry pi3.
If you've run the guide correctly you're ready to use Sgneep-Box by turning on your raspberry pi3.
After starting up, you will hear the welcome message and imediately the Sgneep-Box Terminal will open.
You can control Sgneep-Box only from this terminal.
For an overview of the commands, check this page.