Aspose.Cells FOSS is a free, MIT-licensed open-source library for creating, reading, modifying, and saving Excel .xlsx workbooks across every supported language binding, with no Microsoft Office installation or native Office libraries required. All language bindings support XLSX round-trip read/write with full cell-data fidelity, formulas, styling, and data validation. Select language bindings additionally provide conditional formatting, auto-filter, export to CSV, JSON, Markdown, and TSV, along with charts, encryption, and hyperlink management. Install with a single package manager command and run on Windows, macOS, Linux, Docker, and serverless environments. For more capabilities, see the Aspose.Cells commercial edition.
Open-source Python library for creating, reading, modifying, and exporting Excel spreadsheets. MIT licensed, pure Python, no Office required.
Open-source .NET library for creating, reading, modifying, and saving Excel .xlsx workbooks. MIT licensed, pure managed code, no Office required.
Open-source Java 17 library for creating, loading, modifying, and saving Excel .xlsx workbooks.
Open-source C++ library for creating, loading, editing, and saving Excel .xlsx workbooks without Microsoft Excel.
Open-source TypeScript library for creating, reading, modifying, and exporting Excel spreadsheets. MIT licensed, no Office required.
Open-source Go library for creating, reading, and modifying Excel spreadsheets. MIT licensed, zero dependencies, with streaming support for large files.
Open-source Rust crate for creating, reading, editing, and saving Excel XLSX spreadsheets with no Office dependencies.