What is MIME type "application/x-msschedule"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/x-msschedule identifies a file that stores scheduling data in a proprietary format. It is tied to legacy Microsoft scheduling tools that managed calendars, meetings, and tasks.

Files matching this MIME type use the extension SCD.

This file format was built to handle appointment information and scheduling events. It usually contains details like meeting times and task lists in a binary structure.

Appointment Management: Organizes and stores meeting and event details.
Data Exchange: Enables scheduling info sharing between compatible programs.
Legacy Support: Works with older Microsoft scheduling applications.

For extra information on MIME types, check out Wikipedia.

Associated file extensions

.scd

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-msschedule

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-msschedule">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');    
    
    http.createServer((req, res) => {    
      res.setHeader('Content-Type', 'application/x-msschedule');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.scd

FAQs

What is the purpose of the application/x-msschedule MIME type?

This MIME type represents files created by Microsoft Schedule+, a legacy time management software. These files, typically ending in .scd, store binary data for calendars, appointment schedules, and task lists.

How do I open a file with the application/x-msschedule content type?

Modern web browsers cannot render this format natively. To view the contents, you must download the file and import it into a compatible application, such as an older version of Microsoft Outlook or a specialized file converter that supports legacy Schedule+ data.

How do I configure Apache to serve .scd files correctly?

To ensure your Apache server sends the correct headers for Schedule+ files, add the following directive to your .htaccess or httpd.conf file: AddType application/x-msschedule .scd. Without this, the server might default to application/octet-stream.

Why does the MIME type start with "x-"?

The prefix x- indicates that application/x-msschedule is a non-standard or private extension type. It was defined by Microsoft for their proprietary software and is not officially registered in the public IANA MIME type registry.

Can I convert application/x-msschedule files to modern formats?

Yes, though it often requires intermediate software. The goal is usually to convert the legacy binary data into the standard text/calendar (iCalendar/ICS) format, which is supported by Google Calendar, Apple Calendar, and modern Outlook.

Is application/x-msschedule safe to open?

As with any binary format (application/*), you should exercise caution. While the format itself is just data, legacy files can be exploited if opened with vulnerable, outdated software. Always scan .scd files with antivirus software before opening them.

How do Nginx servers handle this MIME type by default?

Nginx does not usually include application/x-msschedule in its default mime.types file. To support it, you must manually add the line application/x-msschedule scd; inside the types { ... } block of your Nginx configuration.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.