To address the increasing prevalence of evasive Office Open XML (OOXML) files to deliver zero-day threats, Palo Alto Networks WildFire® introduces a new OOXML analysis classification engine for WildFire Inline ML. This powerful engine enables you to configure your NGFW to detect and prevent malicious Office Open XML files from entering your network in real-time by applying machine learning (ML) analytics. WildFire Inline ML dynamically detects malicious files of specific types by evaluating various file details to formulate a high probability classification of a file. This protection extends to currently unknown as well as future variants of threats which match characteristics that Palo Alto Networks identifies as malicious.