I'm a country girl, I grew up with a hunting family. I believe it's important to pass these skills to future generations.
Start from the breastbone area. It is important to remove the "voice box" portion of the deer. Often the removal of the voice box is the catalyst for the kill.
It is occasionally difficult to remove some of the entrails; you may need to use some force to do so. That is OK. It will look worse before it starts to look better.
It's important to completely remove all of the entrails from the deer.
Most hunters leave the entrails at the site of the kill. (The hunter's mom cleans up the mess)
I hope you've learned a new skill tonight. ( I apologize that Rudolph happened to be the deer in this particular tutorial - many animals are killed in this home; it was Rudolph's turn tonight)