Changes

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Different programs store the same kind of information in different formats, the format is indicated by the extension to the file name, which is usually 3 characters (but in some cases can be 2 or 4 characters also). For e.g. a text file may be stored in a .docx or a .odt or a .txt format, a music file may be in a .wav or a .mp3 or a .ogg format. Y''<nowiki/>''ou may have a need to convert a file from one format to another, to use it. A video that plays on your computer may not play on your DVD player, or a music clip that plays on your computer may not play on your mobile phone.   

Different programs store the same kind of information in different formats, the format is indicated by the extension to the file name, which is usually 3 characters (but in some cases can be 2 or 4 characters also). For e.g. a text file may be stored in a .docx or a .odt or a .txt format, a music file may be in a .wav or a .mp3 or a .ogg format. Y''<nowiki/>''ou may have a need to convert a file from one format to another, to use it. A video that plays on your computer may not play on your DVD player, or a music clip that plays on your computer may not play on your mobile phone.   

==Objectives==

===Objectives===

By the end of this chapter, you will be able to

By the end of this chapter, you will be able to

# know about open and closed file formats

# know about open and closed file formats