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# PhpSpreadsheet - OpenXML - Read, Write and Create spreadsheet documents in PHP - Spreadsheet engine
Master:
[](https://travis-ci.org/PHPOffice/PhpSpreadsheet)
[](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/?branch=master)
[](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/?branch=master)
[](https://packagist.org/packages/phpoffice/phpspreadsheet)
[](https://packagist.org/packages/phpoffice/phpspreadsheet)
[](https://packagist.org/packages/phpoffice/phpspreadsheet)
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[](https://gitter.im/PHPOffice/PhpSpreadsheet)
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Develop:
[](http://travis-ci.org/PHPOffice/PhpSpreadsheet)
[](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/?branch=develop)
[](https://scrutinizer-ci.com/g/PHPOffice/PhpSpreadsheet/?branch=develop)
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PhpSpreadsheet is a library written in pure PHP and providing a set of classes that allow you to write to and read from different spreadsheet file formats, like Excel (BIFF) .xls, Excel 2007 (OfficeOpenXML) .xlsx, CSV, Libre/OpenOffice Calc .ods, Gnumeric, PDF, HTML, ... This project is built around Microsoft's OpenXML standard and PHP.
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## File Formats supported
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|Format |Reading|Writing|
|--------------------------------------------|:-----:|:-----:|
|Open Document Format/OASIS (.ods) | ✓ | ✓ |
|Office Open XML (.xlsx) Excel 2007 and above| ✓ | ✓ |
|BIFF 8 (.xls) Excel 97 and above | ✓ | ✓ |
|BIFF 5 (.xls) Excel 95 | ✓ | |
|SpreadsheetML (.xml) Excel 2003 | ✓ | |
|Gnumeric | ✓ | |
|HTML | ✓ | ✓ |
|SYLK | ✓ | |
|CSV | ✓ | ✓ |
|PDF (using either the tcPDF, DomPDF or mPDF libraries, which need to be installed separately)| | ✓ |
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## Requirements
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* PHP version 5.5.0 or higher
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* PHP extension php_zip enabled (required if you need PhpSpreadsheet to handle .xlsx .ods or .gnumeric files)
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* PHP extension php_xml enabled
* PHP extension php_gd2 enabled (optional, but required for exact column width autocalculation)
## Want to contribute?
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If you would like to contribute, here are some notes and guidlines:
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- All new development happens on the 1.9 branch, so it is always the most up-to-date
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- The master branch only contains tagged releases
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- If you are going to be submitting a pull request, please fork from 1.9, and submit your pull request back to that 1.9 branch
- Wherever possible, code changes should conform to PSR-2 standards
- [Helpful article about forking ](https://help.github.com/articles/fork-a-repo/ "Forking a Github repository" )
- [Helpful article about pull requests ](https://help.github.com/articles/using-pull-requests/ "Pull Requests" )
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## License
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PhpSpreadsheet is licensed under [LGPL (GNU LESSER GENERAL PUBLIC LICENSE) ](https://github.com/PHPOffice/PhpSpreadsheet/blob/master/license.md )
