Technical MIME Specification & Web Server Guide

application/x-msdownload

Technical overview, official IANA specification, header magic bytes, and server configuration snippets for .MSDOWNLOAD files (MSDOWNLOAD File Format).

File Extension

.msdownload

Content-Type Header

Format Category

General Files

Standard Specification

IANA Registered Standard

Description & Usage

Binary or text file format identified by extension .msdownload

HTTP Server Content-Type Configuration Code

# Nginx mime.types configuration for .msdownload
types {
    application/x-msdownload    msdownload;
}

OS Compatibility Matrix

Windows

macOS

Linux

Android

iOS

Want to test header signatures or binary files?

Run binary magic byte inspection in Magic Byte Detector.

Frequently Asked Questions

The official MIME content type for .msdownload files is "application/x-msdownload". Web servers use this header to instruct browsers how to render or process .msdownload data.