The package which is used in this article is avaible on MyGet on this url: https://www.myget.org/F/orchardcore-preview/api/v3/index.json
This article walks you through the steps for using Portable Object files (PO files) inside your ASP.NET Core application.
PO files are files that contain the translated strings for a given language. They reveal very useful as contrary to standard resx files, PO files support pluralization and are distributed as text files.