import xlsx = require('xlsx'); var options:xlsx.IParsingOptions = { cellDates:true }; var workbook = xlsx.readFile('test.xlsx', options); var otherworkbook = xlsx.readFile('test.xlsx', {type: 'file'}); console.log(workbook.Props.Author); var firstsheet:string = workbook.SheetNames[0]; var firstworksheet = workbook.Sheets[firstsheet]; console.log(firstworksheet["A1"]); interface tester { name:string; age: number; } var jsonvalues:tester[] = xlsx.utils.sheet_to_json(firstworksheet); var csv = xlsx.utils.sheet_to_csv(firstworksheet); var formulae = xlsx.utils.sheet_to_formulae(firstworksheet);