Fix #2373. Excel can handle DateTime/Date/Time as a string if the datatype of the cell is set to "d". The string is, apparently, supposed to follow the ISO8601 spec. Openpyxl can be configured to generate a file with such values, so I've added support and set up unit tests. Excel, naturally, converts such a string input into its numeric representation of the date/time stamp. So will PhpSpreadsheet, so a call to setValueExplicit specifying Date format will actually see the cell wind up with Numeric format - there is no way (and no reason) for the Date type to 'stick'. |
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README.md
PhpSpreadsheet
PhpSpreadsheet is a library written in pure PHP and offers a set of classes that allow you to read and write various spreadsheet file formats such as Excel and LibreOffice Calc.
Documentation
Read more about it, including install instructions, in the official documentation. Or check out the API documentation.
Please ask your support questions on StackOverflow, or have a quick chat on Gitter.
PHPExcel vs PhpSpreadsheet ?
PhpSpreadsheet is the next version of PHPExcel. It breaks compatibility to dramatically improve the code base quality (namespaces, PSR compliance, use of latest PHP language features, etc.).
Because all efforts have shifted to PhpSpreadsheet, PHPExcel will no longer be maintained. All contributions for PHPExcel, patches and new features, should target PhpSpreadsheet master branch.
Do you need to migrate? There is an automated tool for that.
License
PhpSpreadsheet is licensed under MIT.

