Jquery Ajax [work] Download - Excel File

Your controller should return a file result with the correct MIME type.

[HttpPost] public ActionResult ExportExcel(int reportId) { // Logic to generate Excel using libraries like ClosedXML or EPPlus byte[] fileContent = GenerateExcelBytes(reportId); return File(fileContent, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "Report.xlsx"); } Use code with caution. Method 2: Two-Step Redirect (Fallback) jquery ajax download excel file

If the data already exists in an HTML table on the page, you can use plugins like jQuery table2excel to export directly without a server-side request. javascript Your controller should return a file result with

: Send data to the server, which generates the file and saves it in a temporary folder. The server returns the filename or a unique ID . javascript : Send data to the server, which

: On success, use window.location.href to trigger the download from a secondary URL. Success Handler Example: javascript

This approach handles everything in a single request. The server sends the file as a byte stream, and the client converts it into a downloadable link. 1. Client-Side jQuery Code

$("#export-btn").click(function(){ $("#myTable").table2excel({ filename: "TableData.xls" }); }); Use code with caution. Key Considerations