What is MIME type "application/vnd.openxmlformats-officedocument.spreadsheetml.template"?

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

The MIME type application/vnd.openxmlformats-officedocument.spreadsheetml.template identifies a spreadsheet template file. It uses the Office Open XML standard, a modern format set by Microsoft Excel. Files of this type help users start new spreadsheets with a ready-made layout.

Such files are saved with the XLTX extension. This signals that the file is a template, offering preset formatting and formulas instead of empty data.

Key uses include:

• Rapid creation of new workbooks by reusing a predefined design.
• Standardized layouts for financial reports, project plans, and data logs.
• Consistent branding and formatting across multiple documents.
• Automated setup that reduces repetitive formatting tasks.

This template format streamlines workflow for those who frequently create similar spreadsheets. It is well supported by Microsoft Excel and other software that handles Office Open XML files. For more technical insights, consider visiting IANA's media types registry.

Associated file extensions

.xltx

Usage Examples

HTTP Header

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

    Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.template
  

HTML

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

    <a href="file.dat" type="application/vnd.openxmlformats-officedocument.spreadsheetml.template">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/vnd.openxmlformats-officedocument.spreadsheetml.template');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.xltx