A couple of years ago I was asked about Dynamics NAV file handling for zipping a file after exporting the data, at the time I looked at creating a batch file and scripting the zipping up of the exported file, however I prefer to do as much as possible from within Dynamics NAV, I have revisited this topic to see how I could do it in Dynamics NAV 2013 R2 using Dot Net assemblies, this example uses one of the Zip Files Classes that come with the Windows Dot.Net installed dll classes, the report used in this example can be downloaded at the end of this post.