I’m on a Windows PC and I’m getting a warning about “Blocked Content” and that I need to review my trust center settings. Similarly, I see a warning that says, Microsoft has blocked macros from running because the source of this file is untrusted.
Please see this article for how to resolve this warning, which includes information on how to safely check for viruses or malware for any file downloaded from the Internet. The following Getting Started video is also an excellence resource for this.