I have a Microsoft Access 2013 App I will be converting to VB using Visual Studio Community 2015.

Should I use Windows Forms Application or WPF Application and why?

Below is a little about my project:

I have some forms that do various standard database manipulations in SQL Server tables and also I need to query a web site and pass it some variables in the URL address and receive a text response back from the web site. The web site will also upload and download .cvs files. I also have a need to have the user pick a file using the windows file selector

Given the above description what should I use? Also are there any free converters that will convert any of my Access things (forms and/or code) into the target VB?