file is a digital book format, not an executable driver file (which typically ends in Safety Warning
The "Driver.epub" file mentioned in your query is likely a digital manual or a mislabeled document rather than an executable driver, as EPUB is an e-book format. CRE-DAC SuperSpeed USB-C + USB-A card reader - AXAGON
Search reputable archives (like DriverGuide or the Internet Archive) for "Godspeed USB 2.0 Card Reader" or the chipset ID you found in step one. Installation Guide
If you cannot find the Godspeed driver, you do not actually need it. Windows 8/10/11 have a built-in driver and a Generic Card Reader driver.
Because driver installation for obscure OEMs like Godspeed can be complex, the manufacturer sometimes provides an in EPUB format. Inside this eBook (the .epub file), there are pictures and text explaining how to install the driver, but the actual driver files are attached as a .zip inside the ebook.
