File extensions by JB & VC

.avi

It's a file extension to store audio and video at the same time.

.mp4

It's a file extension that stores media format

.mov

It's a video extension that can also support audio and subtitles

.mpeg/.mpg

It's a popular video format because of its optimal delibery and playback

.osp

It saves video editing data

.wmv

It's a windows compressed video format

.aup

It's a reference to variuos audio files and the changes applied

.mp3

It's an extension for audio file format

.cda

I'ts an auxiliary file to acces specific audio tracks

.Mid/Midi

Music file that transports saves and opens music sequences

.wav

It's an audio file that stores digital audio waves

.wma

It's a windows compressed audio format

.odp

It processes documents, presentations, spreadsheets and graphics

.ppt

It's the standard type of presentation for education

.pptx

It's the same as ppt but the new version

.xls

It's the original file format for excel

.xlsx

It's the newer version of xls which is more compatible with newer spreadsheet programs

.gif

It's a file extension for moving images and animations

.png

It's a image file that doesn't lose any quality when it's compressed.

.jpg/.jpeg

It's the most coomon extension for the digital cameras.

.bmp

It's a map of bits that can store images of 24 bits

.xcf

It's the format used by the image editor GIMP

.doc

It's a word processing document for microsoft

.docx

It's the newer version of doc

.pdf

It's a document that cannot be edited but can be easily shared

.epub

I'ts a document for eBooks

.ods

It's an open archive that stores spreadsheets

.odt

It's also an open archive that stores texts

.rtf

It's a file format that can switch between different word processors and operating systems

.txt

The most basic text format ever

.exe

It's a executable file format with a reubicable code

.bat

It's a text file that executes repetitive commands

.msi

It's a software installer

.zip

It's a kind of file that it's smaller than the files that it contains

.rar

It's a high quality compressed file because of its encryptation and password protection

tar.gz

It's the combination of Tar and gzip formats

.htm/.html

It's an extension for plain ASCII text

.iso

It's a digital replica of a CD

.torrent

It stores metadata (data about data) of folders or archives