If this was actually a specific real reference (firmware file, device codename, etc.), let me know and I can give you the factual context instead.
: The file extension used for flashing via Odin , Samsung's proprietary flashing tool. Purpose and Usage
Even with careful planning, things can sometimes go wrong. Here's how to handle common problems. twrp3021smt560tar
Simultaneously press and hold the buttons. Release the buttons when a warning screen appears.
Let's assume "twrp" could stand for a group or a device, "3021" for a date or model number, "smt" for a type of technology or material, "560" for a specification or version, and "tar" for a type of file or substance. If this was actually a specific real reference
Download and extract (v3.10.7 or newer is recommended) to an easily accessible folder on your desktop.
Ensure your tablet has at least 50% battery to prevent it from shutting down mid-flash. Here's how to handle common problems
(Spreadtrum SC7730SE or Marvell PXA1908 chipsets depending on region).
Extract the downloaded Odin .zip file and launch the Odin3.exe program as an administrator.
Your (e.g., gaining root access, installing a specific custom ROM version).