Hi Jackie,
Sorry for not explaining it in detail.
Please create a temporary folder in the C:\ drive (e.g., C:\Zip)
Move the .zip file to that directory, and extract the files to a subfolder. See How to unzip files on Windows 11, 10
(or)
Get the 7-Zip portable version from this third-party link: https://portableapps.com/apps/utilities/7-zip_portable
Portable version of the program is unavailable from the 7-Zip official site. The Portableapps.com portal is not owned by 7-Zip, but it's a trusted domain.