For implementing the function, need to implement excel js library function /** * file Extract function * @param {Number} fileId internal ID * @return {Object} returnDate Json Object */ function extractFileToJSON(fileId) { try { let returnData = []; let excelFile = file.load({ id: fileId }); let workbook = XLSX.read(excelFile.getContents(), {type: ‘base64’}); let firstSheetName = workbook.SheetNames[0];… Continue reading Extract xls file to Json