add-on > addon ( stick with one spelling )
HyperText Markup Language (HTML)
, named after Leslie Lamport. With LaTeX Lamport added a collection of macros to the original T<sub>E</sub>X program which was made by Donald Knuth .
==Open Document Text==
.odt & .fodt for word processing (text) documents.
Open Document Format for Office Applications (ODF), also known as OpenDocument, is a ZIP-compressed XML-based file format for spreadsheets, charts, presentations and word processing documents. It was developed with the aim of providing an open, XML-based file format specification for office applications.
"Portable Document Format (PDF) (redundantly: PDF format) is a file format developed by Adobe in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.[[https://wikipedia.org/wiki/PDF#cite_note-pdf-ref-1.7-3 2]][[https://wikipedia.org/wiki/PDF#cite_note-4 3]] Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it." - ''Wikipedia''
PostScript (PS) is a page description language in the electronic publishing and desktop publishing business. It is a dynamically typed, concatenative programming language and was created at Adobe Systems.
"The Rich Text Format (often abbreviated RTF) is a proprietary[[https://wikipedia.org/wiki/Rich_Text_Format#cite_note-6 6]][[https://wikipedia.org/wiki/Rich_Text_Format#cite_note-e-gov-uk-7 7]][[https://wikipedia.org/wiki/Rich_Text_Format#cite_note-e-gov-uk-archived-8 8]] document file format with published specification developed by Microsoft Corporation from 1987 until 2008 for cross-platform document interchange with Microsoft products."
H ''[https://wikipedia.org/wiki/Rich_Text_Format Wikipedia]''
[https://en.m.wikipedia.org/wiki/VCard vCard], also known as VCF (Virtual Contact File), is a file format standard for electronic business cards.
Graphviz (Graph Visualization)
DOT is the
text file format of the suite GraphViz. It has a human-readable syntax that describes network data, including subgraphs and elements appearances (i.e. color, width, label). NetworkX, Tulip or ZGRViewer can import DOT files as well.
Scalable Vector Graphics (SVG) is an Extensible Markup Language (XML)-based vector image format for two-dimensional graphics with support for interactivity and animation.
[https://vis.stanford.edu/papers/d3 D3: Data-Driven Documents].
A combination of HTML (HyperText Markup Language), SVG (Scalable Vector Graphics), and CSS (Cascading Style Sheet)