Jam Firmware Update - what to do with .hex file?

I’ve got a new Jam, and I want to update the firmware, which out of the box, is 1.15, to 1.16, which seems to be the most recent, as far as I can tell. When I go here, per the instrux – https://kb.sandisk.com/app/answers/detail/a_id/17411/related/1 – it tells me to download a .hex file:

Download Manual Firmware Update (http://downloads.sandisk.com/firmware/clipjam/116/upgrade.hex)

The problem is that my newish Acer laptop running Windows 10 Home doesn’t know what to do with the .hex file when I click on it. I shows me this (in case the screenshot I attached doesn’t show up, here’s the text of the message):

This file does not have an app associated with it for performing this action. Please install an app or, if one is already installed, create an association in the Default Apps Settings page.

I tried using the standalone SanDisk MP3 Firmware Updater
here – http://downloads.sandisk.com/mp3updater/SanDiskMP3Updater.exe – but it shows that there are no updates for the 1.15 firmware (screenshot attached).

Any suggestions?

• Remove any external card from the Clip Jam before performing firmware update
• Ensure your battery is > 50% full.
• Plug in your SanDisk Clip Jam to your computer.
• Download and save the upgrade.hex file linked above to a folder on your computer.
• Drag the file to the root directory of your SanDisk Clip Jam
• Disconnect the SanDisk Clip Jam and let the firmware update begin.
• Once it finishes doing its update, it will turn itself off.
• Turn the Clip Jam on, Select your language and region preference
• Once it is back to the main menu, head to “Settings” >“System Settings”> “Info”, and verify the “Version” is now 1.16".