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| Name | HTML | CSV |
| Full name | HTML - Hypertext Markup Language | CSV - Comma-Separated Values |
| File extension | .html, .htm | .csv |
| MIME type | text/html | text/csv |
| Developed by | W3C & WHATWG | Informational RFC |
| Type of format | Document file format | multi-platform, serial data streams |
| Description | HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging web pages, user interfaces for web applications, and user interfaces for many mobile applications. | In computing, a comma-separated values (CSV) file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format. |
| Technical details | HTML elements form the building blocks of all websites. HTML allows images and objects to be embedded and can be used to create interactive forms. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. | The CSV file format is not standardized. The basic idea of separating fields with a comma is clear, but that idea gets complicated when the field data may also contain commas or even embedded line-breaks. CSV implementations may not handle such field data, or they may use quotation marks to surround the field. |
| Associated programs | Mozilla Firefox, Opera, Google Chrome, Internet Explorer. | Microsoft Excel, LibreOffice Calc |
| Wiki | https://en.wikipedia.org/wiki/HTML | https://en.wikipedia.org/wiki/Comma-separated_values |