Tell your readers exactly what is inside the ZIP file so they know it is safe to open.
Many modern editors (like WordPress Elementor) allow you to add a "Download" button for a more professional look. Step 3: Important Security Tips
Once you have the URL, you can add it to your blog post in a way that is clear for users.
Remind users they will need a tool like WinZip or the built-in Windows/Mac extractor to access the files.