Open Office is a freely distributed office suite that includes a word processor, spreadsheet, database, drawing tool, chart creator, and math program. It originated from AT&T Unix and structured programming languages and was later developed as open source software by Sun Microsystems, who was later acquired by Oracle. The word processor, called Writer, functions similar to Microsoft Word while the spreadsheet program, CALC, works like Excel by allowing users to work with 2D tables, functions, formatting, and hiding columns.

1. Open Office
Freely distributed suite of productivity tools
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Word processor
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Spreadsheet
 Database
 Draw
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Chart
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Math

2. Some History
A T & T Unix and structured language
Open Source and GNU
Linux
Sun Microsystems
Open source foundation
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Apache
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MySQL
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Joomla
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Wordpress
Oracle buys Sun
Difference between Larry Ellison and God

3. Writer
Word Processor based on word 97 (.doc)
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Page setup
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Fonts
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Spacing
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Alignment
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tables

4. CALC
Spreadsheet based on Excel 97 (.xls)
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2 dimensional
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Powerful functions
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Number formatting
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Hide columns