[Apose Email] Java to get attach zip file with attachment.getContentStream()

I am trying to extract a zip file attachment from an email with Java.

The project is using Aspose email.

I would like to know if I use attachment.getContentStream() to get the inputStream, would I be able to treat the inputStream as a Java File Type and convert it a Zipfile type and extract the content from the zip file.

This is a sample of what I am trying to do.

Lib Version: aspose-email-1.1.0-jdk15.jar.

thanks for the help

Vincent