Make sure the permissions are set to "Anyone with the link can view."
While it sounds like you have a specific file you want to share or write about, I can't directly "download" files from external links to view their contents for you.
Use a clear "Download Now" button or text link in your editor. 3. If you are trying to import a blog from a ZIP file
If you found this link on a random site, be careful! ZIP files can sometimes hide malware. It's always a good idea to scan them with a tool like VirusTotal before opening or sharing them with your readers. Just let me know what the file is about! Add zip file to blog post? | WordPress.com Forums