SpreadStreamProcessing - Telerik UI for ASP.NET Core Controls - Telerik

Handle Large XLSX and CSV Files

The SpreadStreamProcessin enables you to create and export large amount of data to XLSX and CSV file formats with excellent performance, minimal memory and less resources. You can append data to already existing document stream. The generated document can be exported directly to a file on the file system or to a stream (for example, to send it to the client)

It also enables styling and formatting of cells and offers grouping, as well as hidden rows and columns.

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