I was trying to download 3 pdf attachments from this job, but it says "It is not safe to download this file. If you really want to access this file please contact Customer Support.
I checked but it looks like this job post is no longer available and doesn't include any attachments.
All attachments and links transferred on Upwork are scanned for potentially malicious content.
In some cases, malware scanning will remove embedded macros, formulas, or active content that is deemed potentially malicious. You can learn more about this here.