Custom File Export

I need to create a custom file export action that basically does the same thing as the "Export to CSV" you see on a datalist, EXCEPT I need it to NOT put double quotes around the header row field names. Sales Force Marketing Cloud does not deal with text-qualified headers.


It looks like I can call this end point:


{service root}/Download/CustomFileDownload.ashx


but I would need to pass in this parameters... Required string The name of the assembly the AppCustomFileDownLoadProcessor is in. Required string The name of the AppCustomFileDownLoadProcessor class.

AssemblyName

ClassName

My question is, What do I need to do to create my own AppCustomFileDownLoadProcessor.