.XHTML File Extension

Extensible Hypertext Markup Language File

Developer	N/A
Popularity	Average rating 3.2 / 5. Vote count: 56
Category	Web Files
Format	.XHTML
Cross Platform	Update Soon

What is an XHTML file?

The .XHTML file extension refers to files written in Extensible Hypertext Markup Language (XHTML), which is a web page format designed to combine the strengths of HTML and XML. XHTML is used to create web documents with a strict syntax that follows XML rules.

More Information.

Initial Purpose: XHTML was developed to bridge the gap between HTML and XML, making web documents more reliable and easier to maintain.
History: XHTML 1.0 was first published in January 2000. It aimed to provide a cleaner, stricter standard for web development. Later versions, such as XHTML 1.1 and XHTML 2.0, introduced additional features and improvements but were eventually superseded by HTML5.

Origin Of This File.

XHTML was introduced by the World Wide Web Consortium (W3C) as a reformulation of HTML 4.01 using XML 1.0. The goal was to make HTML more rigorous and to ensure that web documents are well-formed and can be processed by XML parsers.

File Structure Technical Specification.

File Structure: XHTML files are structured similarly to HTML files but adhere to stricter XML rules. They must have well-formed XML syntax, meaning all tags must be properly nested and closed.
Technical Specification: XHTML documents must be served with an XML MIME type (such as application/xhtml+xml) and include a DOCTYPE declaration to specify the version and DTD (Document Type Definition) being used. The content is structured with elements and attributes similar to HTML but with additional XML constraints.

How to Convert the File?

Windows

To HTML:
- Manual Conversion: Open the .XHTML file in a text editor like Notepad++ or Visual Studio Code. Save the file with a .html extension. Ensure the file content is valid HTML.
- Using Tools: Tools like HTML Tidy can convert XHTML to HTML. You can use the command line or integrated features in text editors.
To PDF:
- Online Converters: Use online services like Zamzar or Convertio to upload and convert .XHTML to PDF.
- Desktop Software: Programs like Adobe Acrobat or PDFCreator can convert .XHTML files if you print the file to a PDF printer.
To DOCX or Other Formats:
- Microsoft Word: Open the .XHTML file in Word and then save it as .docx or another format.
- Online Converters: Use services like Zamzar or CloudConvert.

Linux

To HTML:
- Manual Conversion: Open the .XHTML file in a text editor like Gedit or Vim. Save the file with a .html extension.
- Using Tools: Use command-line tools like tidy to convert the file if necessary.
To PDF:
- Online Converters: Use services like Zamzar or PDFCrowd.
- Command Line: Use tools like wkhtmltopdf to convert .XHTML to PDF via the command line.
To DOCX or Other Formats:
- LibreOffice: Open the .XHTML file in LibreOffice Writer and export it as .docx or other formats.
- Online Converters: Use services like CloudConvert.

Mac

To HTML:
- Manual Conversion: Open the .XHTML file in TextEdit or Visual Studio Code and save it as .html.
- Using Tools: Use HTML Tidy or similar tools for conversion.
To PDF:
- Online Converters: Use services like Zamzar or Convertio.
- Using Preview: Open the .XHTML file in a browser, then use the print function and save as PDF.
To DOCX or Other Formats:
- Microsoft Word for Mac: Open the .XHTML file in Word and save it as .docx or another format.
- Online Converters: Use CloudConvert or Zamzar.

Android

To HTML:
- Manual Conversion: Use a file manager and text editor app to rename the file extension to .html. Ensure the file content is valid HTML.
To PDF:
- Online Converters: Use mobile web browsers to access online conversion tools like Zamzar or Convertio.
- Apps: Use apps like OfficeSuite or other PDF converters available in the Google Play Store.
To DOCX or Other Formats:
- Online Converters: Access online conversion tools like Zamzar from the mobile browser.
- Apps: Use apps that support document conversion if available.

iOS

To HTML:
- Manual Conversion: Use a file management app and text editor to change the file extension to .html. Check that the content is compatible with HTML.
To PDF:
- Online Converters: Use web-based services like Zamzar or CloudConvert via a browser on iOS.
- Apps: Use apps like PDF Converter or PDF Expert to convert files.
To DOCX or Other Formats:
- Apps: Use apps like Pages or Word for iOS to open the .XHTML file and export it as .docx or other formats.
- Online Converters: Use services like CloudConvert.

Others

To HTML:
- Manual Conversion: Rename the file extension to .html if the content is compatible with HTML.
- Using Tools: Use cross-platform tools like HTML Tidy or online converters.
To PDF:
- Online Converters: Services like Zamzar or Convertio work across different platforms.
- Desktop Software: Use universal desktop applications that support PDF creation.
To DOCX or Other Formats:
- Online Converters: Websites like Zamzar, CloudConvert, or other universal file conversion tools can handle these conversions.

Advantages And Disadvantages.

Advantages:
- Well-formed Syntax: Ensures documents are valid XML and can be parsed consistently.
- Interoperability: Can be processed by both HTML and XML parsers.
- Consistency: Provides a more rigorous standard compared to HTML.
Disadvantages:
- Complexity: Stricter syntax rules can make it more complex to write and debug.
- Compatibility Issues: Some older browsers or systems may have trouble processing XHTML correctly if served with an XML MIME type.

How to Open XHTML?

Open In Windows

Web Browsers: Open .XHTML files with web browsers like Chrome, Firefox, Edge, or Internet Explorer.
Text Editors: Edit with text editors such as Notepad++, Sublime Text, or Visual Studio Code.

Open In Linux

Web Browsers: Use browsers like Firefox, Chromium, or other Linux-compatible browsers.
Text Editors: Edit with editors like Gedit, Vim, or Atom.