Introducing Norton Script Control – a new feature that helps protect you from malware that you download or receive as attachments in phishing emails. It removes suspicious scripts from files and sanitizes the files.
Scripts are used to make documents dynamic and interactive. Although the primary objective of scripts is to improve the document experience, cybercriminals can use them to sneak malware on your computer. Scripts are generally not important to the function of a document and many software programs disable them by default.
You can go to Security History, and restore the original file.
For more information visit FAQ: Norton Script Control and Set Norton to remove scripts that can be exploited in phishing attempts pages.