Library: Microsoft Excel (XLSX)

Observable Framework documentation: Library: Microsoft Excel (XLSX) Source: https://observablehq.com/framework/lib-xlsx

FileAttachment supports the Microsoft Excel Open XML format via the file.xlsx method. This is implemented using the MIT-licensed ExcelJS library.

const workbook = FileAttachment("laser-report.xlsx").xlsx();

This returns a promise to a Workbook instance.

workbook

The workbook’s sheet names are exposed as workbook.sheetNames.