The file you possess is the bridge software allowing your Windows computer to speak to the Cisco router via a USB cable. Without it, the router will not be visible to your terminal software.
While specifically named for the ASR 9xx series, this driver often works across various Cisco devices with USB console support. Installation Steps asr9xxusbconsoledriverszip
Now go forth, unzip, install, and command your ASR 9000 with confidence. The file you possess is the bridge software