Excelize is a library for reading and writing spreadsheet files in the Office Open XML format. It provides a comprehensive suite of tools for programmatically creating, modifying, and analyzing workbooks, worksheets, and cell data, ensuring compatibility across various office software suites through structured XML serialization.
The library distinguishes itself with a built-in formula calculation engine that evaluates complex mathematical and logical expressions directly against workbook data. It also features a memory-mapped streaming architecture, which allows for the efficient processing of massive spreadsheet files by handling data in chunks, thereby maintaining low memory usage during document manipulation.
Beyond basic file operations, the project supports advanced document features including style-driven formatting, conditional rules, and the embedding of graphical elements like charts and pivot tables. It also provides security capabilities, allowing users to encrypt and decrypt protected spreadsheet files to manage sensitive information.
The project is implemented in Go and is available for integration into applications requiring automated spreadsheet generation, data import and export, or complex document transformation.
