Video tutorial below demonstrates how to add VintaSoft web spreadsheet document editor to an ASP.NET Core application and edit XLSX document in ASP.NET Core application using VintaSoft Imaging .NET SDK.
Video tutorial consists from the following steps:
1. Create a blank "ASP.NET Core Web App (Model-View-Controller)" application in Visual Studio 2026.
2. Server side: Add references to the Vintasoft nuget-packages to the ASP.NET Core application.
3. Server side: Create ASP.NET Core API controllers, which allow to upload/download file, work with XLSX document.
4. Client side: Add JavaScript libraries to the project.
5. Client side: Add JavaScript code that creates VintaSoft web spreadsheet editor that allows to view and edit XLSX document.
6. Run created ASP.NET Core application in Chrome and see the result:
6.1. View XLSX document in VintaSoft web spreadsheet document editor.
6.2. Edit content of XLSX document in VintaSoft web spreadsheet document editor.
6.3. Add new chart to XLSX document.
6.4. Download changed XLSX document to a local computer and see result in Microsoft Excel.
