Which MIME types are related to file extension ".xlsx"?

What is a File Extension?

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

About .xlsx Files

Description

XLSX files are Microsoft Excel spreadsheets that use the Office Open XML format. They store data in cells organized in rows and columns, along with formulas, charts, and other spreadsheet elements.

Associated MIME Types

Applications

.xlsx files can be opened with the following applications:

Microsoft Excel
Google Sheets (with conversion)
LibreOffice Calc
Apple Numbers
Online spreadsheet editors (Office 365, Zoho Sheet)

Technical Details

Format

The .xlsx format is associated with Microsoft Excel Spreadsheet (XLSX). Office Open XML format used by Microsoft Excel from 2007 onwards.

Usage

.xlsx files are used for specific applications or purposes related to Microsoft Excel Spreadsheet (XLSX).

Frequently Asked Questions

Related File Extensions

External reference for the .xlsx file extension

https://filext.com/file-extension/XLSX