OPEN OFFICE (free alternative to microsoft office)

Are you  fed up of  using the large and costly Microsoft office and want to try something more small and free 'open office' is the best solution for you.
OPEN OFFICE is a leading open-source office software suite for word processing, spreadsheets, presentation, database,  graphics and many more.it is very easy to use and is available in many languages, it stores data by default in the opendocument file format
but can also read and write  from other common office software packages like Microsoft office. it is regularly updated with improving new features

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Personal note :- I am a great fan of the open-source project and advice everyone to try them. Now talking about openoffice it is one of the most famous and useful open-source office suite software, i myself use it and find it most satisfactory for my daily uses. Yes it may not have complicated features like Microsoft office but it balances that with providing its own unique features which other office suites lack.