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)
: Choose Tekla Structures 2020 from the product list.
If you have downloaded "part1.rar" of a split archive from a third-party site, follow these steps to use it:
: Right-click on part1.rar and select "Extract Here." The extraction software (like WinRAR or 7-Zip) will automatically pull data from the other parts to create the full installer.