English
xlswriter is a PHP C extension for reading and writing Excel 2007+ XLSX files.
The documentation is organised by feature: install the extension, walk through the quick start for writing, reading and manual cleanup, then dive into the topic that matches the task: cell content, worksheet management, styling, charts, conditional formatting, data validation, Excel tables, page setup, workbook properties, defined names, sheet protection, the reader API, CSV conversion, helper utilities, exceptions and FAQ.
For the rationale behind the project and benchmarks, see Why use xlswriter.