The folder is a primary component of the Office installation package, and Propsww2.cab is an archive file specifically used for licensing and application functions. When the installer triggers this error, it's often due to:
To resolve this, you do not always need a new download. Follow these steps in order: 1. Extract and Run from Local Storage
Choose a new folder on your desktop as the destination. Once finished, run from that folder. 2. Clear Previous Office Versions