: You must have all parts (e.g., part1, part2, etc.) in the same folder before you can extract anything.

Downloading software like via multi-part RAR files is a common method for handling large installers on unofficial platforms, though the official Trimble download process uses a single executable file. Official Download & Installation (Recommended)

: A minimum of 16GB RAM is recommended for stable performance.

: Download and install additional "environments" (e.g., US, UK, or Default) separately to access region-specific materials and profiles. Working with RAR Files (Unofficial Sources)

If you have downloaded "part1.rar" of a split archive from a third-party site, follow these steps to use it:

: Choose Tekla Structures 2020 from the product list.