• • Registered MIME type: application/xhtml+xml
  • XHTML with embedded MathML.
  • Plain text XML format.
  • Describes the structure and aspects of the appearance of web pages, including typeset mathematical formulas.

• Import ["file.xhtml"] gives a plain text representation of an XHTML+MathML file.
• Import ["file.xhtml","Data"] extracts tabular data from XHTML+MathML.
• Export ["file.xhtml",expr] creates an XHTML+MathML version of expr.
• Export ["dir",expr] translates expr to XHTML+MathML, saving the output in the specified directory.
• Import ["file.xhtml"] returns a string, representing the textual content of the file as formatted plain text.
• Export ["file.xhtml",expr,"XHTMLMathML"] exports a notebook, a cell, a list of cells, or other notebook elements to XHTML, formatting all typeset expressions as MathML.
• Export always creates a complete XHTML+MathML document.
• The output consists of one or more XHTML+MathML files and two directories, HTMLFiles and HTMLLinks.
• The Wolfram Language always converts typeset expressions to MathML when exporting to XHTML+MathML.
• The Wolfram Language can export Tooltip and Hyperlink expressions, creating HTML image maps if necessary.
• Import ["file.xhtml",elem] imports the specified element from an XHTML+MathML file.
• Import ["file.xhtml",{elem,sub_a,sub_b,…}] imports a subelement.
• Import ["file.xhtml",{{elem₁,elem₂,…}}] imports multiple elements.
• The import format can be specified with Import ["file","XHTMLMathML"] or Import ["file",{"XHTMLMathML",elem,…}].
• Export ["file.xhtml",expr,{"XHTMLMathML",elem}] creates an XHTML+MathML file by treating expr as specifying element elem.
• Export ["file.xhtml",{expr₁,expr₂,…},{{"XHTMLMathML",elem₁,elem₂,…}}] treats each expr_i as specifying the corresponding elem_i.
• Export ["file.xhtml",expr,"XHTMLMathML",opt₁->val₁,…] exports expr with the specified option elements taken to have the specified values.
• Export ["file.xhtml",{elem₁->expr₁,elem₂->expr₂,…},{"XHTMLMathML","Rules"}] uses rules to specify the elements to be exported.
• See the following reference pages for full general information:
• Import , Export import from or export to a file
  CloudImport , CloudExport import from or export to a cloud object
  ImportString , ExportString import from or export to a string
  ImportByteArray , ExportByteArray import from or export to a byte array

• Save Selection As exports the selected part of a notebook to XHTML+MathML.
• Save As exports an entire notebook to XHTML+MathML.

• General Import elements:
• "Elements" list of elements and options available in this file
  "Summary" summary of the file
  "Rules" list of rules for all available elements
• Import elements:
• "Data" textual and numerical content from HTML table and list elements
  "FullData" full tabular content, including empty HTML table and list elements
  "Hyperlinks" hyperlinks, given as a list of strings
  "Plaintext" XHTML+MathML document formatted as text
  "Images" images embedded in the XHTML document
  "Source" raw XHTML+MathML source as a single string
  "Title" XHTML page title
  "ImageLinks" URLs of embedded images
  "XMLObject" symbolic XML representation of the entire document
• Import by default uses the "Plaintext" element.
• Export elements:
• "Notebook" a Notebook expression
  "NotebookObject" a NotebookObject expression
  "Expression" an arbitrary Wolfram Language expression

• Basic Export options:
• "ConvertLinkedNotebooks" False whether to convert linked notebooks to HTML
  "Content" False whether to export MathML content elements
• See the "HTML" format page for complete information about supported Import and Export options.

Basic Examples  (2)