You have downloaded an Excel document with macros from (known/excepted) website. When you open this Excel file, you get this error: BLOCKED CONTENT Macros in this document have been disabled by your enterprise administrator for security reasons.
There is a possibility System Administrator might have created a GPO to block Macros. If not, there is a easy solution to enable macros in Excel files (that is downloaded or received in Email).
Trust (Unblock) the file and open it in Excel again. Find the Excel file in Explorer, right on the file and open Properties. Check the box for Unblock the file and lick OK to save the setting, like this:
Now, open the Excel document and click on Enable Content button. That’s IT. Enjoy.