What is MIME type "application/x-sas-catalog"?

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

The MIME type application/x-sas-catalog identifies a proprietary container used by SAS software. It stores compiled resources and SAS-specific objects that support data analysis and statistical processing.

These files keep important elements such as compiled macros, custom formats, and other objects that SAS programs need at runtime. They are built in a binary format that SAS directly accesses to optimize performance.

SAS Objects Storage: Holds compiled code, macros, and formats.
Data Organization: Centralizes various SAS resources for efficient access and management.
Performance Enhancement: Streamlines access during SAS sessions, reducing processing time.

Files with this MIME type often appear with extensions like SAS7BCAT or SC7. They are integral in environments where SAS software handles complex data and analytics tasks.

Associated file extensions

.sas7bcat, .sc7

Usage Examples

HTTP Header

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


    Content-Type: application/x-sas-catalog

HTML

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


    <a href="file.dat" type="application/x-sas-catalog">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-sas-catalog');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.sas7bcat, .sc7

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.