Download TWRP custom recovery version 3.1.1-0 flashable .tar and .img file for Samsung Galaxy S7 Edge Exynos international variant. That means this build of TWRP is compatible for Galaxy S7 Edge with model number SM-G935F, SM-G935FD, SM-G935X, SM-G935W8 (code name Hero2lte). Please make sure you firstly check your device model number. Doing that is simple. Go to Settings >> scroll down >> About Device >> and you will see the model number displayed.
Please be aware that TWRP is created for very specific device. Using a specific build of TWRP on a wrong device will make the device broken or bootloop.
Again, this build is for Galaxy S7 Edge powered with Samsung Exynos chipset and NOT for its Qualcomm nor the flat variant.
Below is the flash-able .TAR file which can be installed through Odin v3 on your computer. However, if you have previous version of TWRP installed, you can download the .img file and flash it directly from older version of TWRP.
p.s: Galaxy S7 Edge is equipped with dm-verity’s boot prevention mechanism and hence you will need proper knowledge on how to flash and use TWRP. Alternatively, make sure you have clear tutorial on how to flash it.