html The hypertext markup language, commonly referred to as HTML is at the backbone of the internet and World Wide Web. It is the standard markup language used in the creation of webpages and was released in 1993 at the advent of the internet. The format defines the structure and layout of a webpage through markup tags such as header tags and image tags from which a browser can interpret multimedia information for on screen presentation. To view files and webpages saved with the .html filename extension, one needs a compatible web browser that implements the HTML specification. Because the format is open source, several browsers which are mostly free to use can open such files. The World Wide Web consortium actively maintains and updates the html specification.
csv The comma-separated values file format or CSV for short is a common cross platform file format used for information exchange between disparate devices, systems, and software. Mainstream usage of the format begun in 2005, with RFC 4180 forming the basis of its specification. The format's strongest feature is the ability to store relational tabular data in a plain text format which can be imported and/or exported to any compatible application. Because of this feature and the relatively small file size, CSV is commonly used for exporting and importing data from populated databases or spreadsheet files that use a proprietary format, to other systems and applications that utilize different file formats and architectures. The csv format is limited though in its inability to represent records only from a relational data source. It does not support object oriented or hierarchical databases.