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We need application, has been writed in C# .NET, which should connect to few GoogleDrive account (100-1000) and allow user manipulate all files as in one see example (in attached file). User interface must be simple as windows explorer. User must see the folders and files with name, type, size, name of google account. User can download selected files or folders from Google account to computer and upload files into Google Accounts. If user upload files application must select Google account automatically. All settings like google api config, names, etc must be in XML config files.