A BNA file is text document made with the use of Barna. Barna is a Bangladesh Word Processing Program that utilizes the Bangla font and supports Bijoy, Munir and keyboard layouts. It was developed originally for DOS program and is no longer in existence. Today’s new version is called T-Bangla Word Processor. It has a Bangla editor in which users can write words in Bangla in UNICODE. Unicode is the accepted standard for text representation and is now used widely. Applications that use Unicode allow documents to be read by different people. It is also responsible particularly on the development of Bangla language web pages. There are various products which can be tapped and used to produce output for Bangla text on computer systems. These applications range from notepad editors to full word processors in different languages. Majority of these were intended for Windows Operating System and there are also products available for use in Linux.
An atlas terrain map file is implemented into many GIS (Geographical Information System) applications and other geospatial mapping tools. These atlas map files are integrated with ASCII 2D vector graphic compression specifications that allow its content to be stored in the BNA file format. The pieces of data that can be stored in an atlas terrain map file may include digital images and graphical objects or elements like shapes and lines of different depths and textures. The digital 2D vector graphic compression specifications implemented into these atlas terrain map files are similar to the digital image encoding standards implemented into bitmap images. These atlas terrain map files can also contain XML data that is associated to the digital images and objects stored in the same atlas terrain map file. These atlas terrain map files are affixed with the .bna extension.
