Rename Download File C# |top| 🚀

// Example in an ASP.NET Controller or WebForm string originalFilePath = Server.MapPath("~/Files/data_001.pdf"); string suggestedName = "Monthly_Report_May.pdf"; Response.ContentType = "application/pdf"; Response.AppendHeader("Content-Disposition", $"attachment; filename={suggestedName}"); Response.WriteFile(originalFilePath); Response.End(); Use code with caution. 3. Alternative: FileInfo.MoveTo

If you are building a web application (ASP.NET) and want to suggest a specific name when the user downloads a file, you modify the header. This doesn't rename the file on the server but tells the user's browser what to call it. rename download file c#

If you have already downloaded a file and want to rename it on your local disk, the most common approach is using the System.IO.File.Move method. // Example in an ASP