GrapeCity Developer Solutions | .NET Controls | .NET Reports | JavaScript Controls | Spreadsheets | Document APIs GrapeCity Developer Solutions product lines include Documents, document APIs for Excel and PDF; ComponentOne, a collection of .NET and Xamarin UI controls; ActiveReports, a complete .NET reporting solution; Spread, a collection of .NET and JavaScript spreadsheet solutions; and Wijmo, a complete library of JavaScript UI controls for Angular, AngularJS, React, and Vue.