vba to extract excel file in subfolder email attachement

Good Day , I used office office 365 ,  my  goal to extract  from inbox folder Veronique specific email attachment which is found in also as outlook attachement an excel file.

The key word for email header SYSTEM U POUR UDIS  and  outlook email attachment where I want to extract  the excel fil;e always has a  key description Transitaire in  which there is an excel which  I need to extract to a specific folder c:\\ pre alert .

 looking a vba code that can extract all these  excel files in that specific folder 

Summary Subfolder Veronique, then lookup email header  showing part description " SYSTEM U POUR UDIS" , then extract in that outlook  email attachement  excel file  and save c\\ pre alert

I search the web for similar case bit not found