If you open a file containing macros from an email or downloaded from a web page, you will get the message, Microsoft has blocked macros from running.
File Security with Enhanced Macros
Recently, Microsoft has changed the security settings of files containing macros from the web or exchanged by email.
Unblock macros from running
To allow macros to run, you must change a setting in the file properties
- In File Explorer, select your file containing macros
- And click Show more options
- Then Properties (the last option in the menu)
- And finally, in the General tab, click on the Unblock option
For instance, this calendar with saving data from one month to another one needs this trick to be activated