Primer3 Input (version 0.4.0)
http://frodo.wi.mit.edu/


: Choose "Extract Here" or "Extract to [Folder Name]" from the context menu.

: Windows does not natively handle multi-part RARs. Use a reliable third-party program: WinRAR (Standard for .rar files). 7-Zip (Free and open-source). PeaZip (Recommended for Steam Deck/Linux users). 2. Extraction Steps

: Right-click only on the file ending in .part1.rar .

This resource is referenced here: