xlnt is a modern C++ library for manipulating spreadsheets in memory and reading/writing them from/to XLSX files as described in [ECMA 376 4th edition](http://www.ecma-international.org/publications/standards/Ecma-376.htm). xlnt is currently under active feature development and is on track for the version 1.0 release in the next few weeks. Until then, the API could have significant changes. For a high-level summary of what you can do with this library, see [the feature list](https://tfussell.gitbooks.io/xlnt/content/docs/introduction/Features.html).
xlnt is released to the public for free under the terms of the MIT License. See [LICENSE.md](https://github.com/tfussell/xlnt/blob/master/LICENSE.md) for the full text of the license and the licenses of xlnt's third-party dependencies. [LICENSE.md](https://github.com/tfussell/xlnt/blob/master/LICENSE.md) should be distributed alongside any assemblies that use xlnt in source or compiled form.