: The software will automatically pull data from the other parts to recreate the original full-sized file.

: Often a project or model code. In technical contexts, this can sometimes refer to specific microcontroller components or industrial firmware updates.

: Open only part1.rar using software like WinRAR , 7-Zip , or The Unarchiver .

: Ensure you have downloaded every numbered part of the set.

: Likely stands for Version 03.26 of a "TI" (possibly Texas Instruments) related technical package or interface.