first, you have to know the difference between html and asp. asp is a web application framework for building dynamic web sites, web applications and web services. it can contain text, html tags and scripts. so you cannot just convert a asp site into html, it wont be dynamic anymore
yes you can't convert exactly but you can just go to the webpage and just click file >> save as and save it for html.
For more info go to W3schools.com My advice is to read the ASP section there by yourself and you will find the answer