Progress Telerik UI for ASP.NET Core


  • Use the ASP.NET Core SpreadStreamProcessing library built to handle large spreadsheet documents with great performance and minimal memory footprint. 
  • This control is part of the Telerik UI for ASP.NET Core suite along with 100+ fully-featured UI components designed to speed up delivery & improve every aspect of your workflow.
  • Manage each project and plan dev time accordingly using the public product roadmap, regular releases, extensive learning resources and outstanding technical support team.

Telerik UI for ASP.NET Core Suite
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  • Overview

    RadSpreadStreamProcessing for ASP.NET Core allows you to create large spreadsheet documents with great performance and minimal memory footprint. You can also export the created spreadsheet document to XLSX and CSV file formats.
    Telerik ASP.NET Core SpreadStreamProcessing
  • Key Features

    Directly Write into a Stream

    Write spreadsheet content directly into a stream to optimize performance. The library will not create or save the document model in memory.

    Append New Worksheets 

    Append new worksheets to an existing workbook.


    Restructure data in your worksheet by grouping rows or columns into sections.

    Hide Rows and Columns 

    Hide extra data that doesn’t need to be visible.

    Format Cells 

    Change the alignment, font, border and more properties of a cell.

    Style Cells

    Style simultaneously several cell properties, such as font, border, alignment and more to achieve a consistent appearance.

    Merge Cells 

    You have the ability to merge two or more adjacent cells into a single cell that spans over multiple rows and columns.

    Set Scale Factor 

    You can apply a scale factor to the exported document.

    Control the Selection and the Active Cell

    Export a document with selection range and specified active cell of the selection.

    Show and Hide Gridlines

    Enables you to set whether the resultant document should be visualized with grid lines and headers.

    Freeze Panes

    Freeze rows and columns to simultaneously view content from different parts of your workbook.

    Change the First Visible Cell 

    Highlight a particular part of the worksheet when the user opens it.

  • Cell with Custom HTML

    Setting the HTML property to true for a Spreadsheet cell will make that cell render its value as HTML. Use this feature to various controls directly into your Spreadsheet. Try it with the example in the API documentation.

    Telerik UI for ASP.NET Core Spreadsheet feature Render cells using custom HTML
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