add-on > addon ( stick with one spelling )
HyperText Markup Language (HTML)
"Lamport's TeX" is named after developer [https://
ewikipedia.org/wiki/Leslie_Lamport Leslie Lamport]. With LaTeX, Lamport added a collection of macros to the original T<sub>E</sub>X program which was made by [https://wikipedia.org/wiki/Donald_Knuth Donald Knuth].
[https://www.latex-project.org/get/ How to get LaTeX]
==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''
[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)