.Exe to .doc

Hi there. I am a Network Engineer and a Cyber Security Analyst who does a lot of Penetration Tests with tools from the Github site and kali linux. Is there a any Tool or assistance in converting my exploits from .exe or .py to either .doc,pdf or xlsm without being detected?I have a project to run a phishing attack on the IT stuffs in an organisation. So I think having taken them through the cyber Training, the most efficient way to be successful is to email the payload to them.I would highly be thankful for any responses since coding is not my area.