$.ajax({ url: '/your-endpoint/export-excel', method: 'POST', data: JSON.stringify({ reportId: 123 }), contentType: 'application/json', xhrFields: { responseType: 'blob' // Essential for binary data }, success: function (data, status, xhr) { // Handle the download logic here }, error: function (error) { console.error("Download failed", error); } }); Use code with caution. 2. Converting the Response to a Downloadable File
Inside the success callback, you create a temporary URL for the Blob data and trigger a hidden link to "click" it. javascript how to download excel file using jquery ajax
Normally, browsers trigger a download when they navigate to a URL that returns a file with a Content-Disposition: attachment header. AJAX, however, keeps the data in memory within the JavaScript environment. To move that data from your script to the user's hard drive, you need to convert the server's binary response into a downloadable object. Step-by-Step Implementation 1. Setting up the jQuery AJAX Request javascript Normally, browsers trigger a download when they
success: function (data, status, xhr) { // 1. Create a Blob from the response var blob = new Blob([data], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' }); // 2. Create a temporary URL for the blob var downloadUrl = URL.createObjectURL(blob); // 3. Create a hidden anchor element var a = document.createElement("a"); a.href = downloadUrl; a.download = "Report.xlsx"; // Specify the filename // 4. Append to body, click, and cleanup document.body.appendChild(a); a.click(); // Release the object URL to free up memory setTimeout(function () { URL.revokeObjectURL(downloadUrl); $(a).remove(); }, 100); } Use code with caution. Best Practices and Alternatives Download Excel file via AJAX MVC - Stack Overflow Step-by-Step Implementation 1
The key to downloading files via AJAX is setting the xhrFields property to handle binary data. By default, jQuery treats responses as text, which can corrupt the binary content of an Excel file. javascript
Downloading an Excel file using jQuery AJAX is a common task, but it requires a specific approach because a standard AJAX call cannot directly trigger a browser's "Save As" dialog. To achieve this, you must handle the file as a and use JavaScript to simulate a click event for the download . The Challenge: Why AJAX alone isn't enough