On Windows and Mac: Click or double click on the zip file. This will open it up and from there, you can open the folder and copy or move the files inside to whatever location you want. Both Windows and the macOS can natively open zip files without any extra software.
On iPhones and Android devices: Tapping the link above (or TAP and HOLD, depending on your device and what is installed, this may work better) will download the zip file to either iCloud Drive or Google Drive depending on what device you're using. Once the zip file download is complete, you can tap on the zip file and open up the folder inside, which contains all the audio flash briefings.
IF YOU HAVE ANY TROUBLE: Contact Tom and he will send you the file to download through Wetransfer.com.
Email Tom at firstname.lastname@example.org or text 301-346-7403