This approach converts application state or JSON payload data directly into a standard .xlsx document layout.
Run flutter pub get via the terminal to pull the packages into the local environment. Method 1: Generating and Downloading Excel from Data flutter download excel file
import 'package:excel/excel.dart'; import 'package:file_saver/file_saver.dart'; Future generateAndDownloadExcel() async { final Excel excel = Excel.createExcel(); final Sheet sheet = excel['Sheet1']; // Example data addition sheet.appendRow(["ID", "Product", "Price"].map((e) => TextCellValue(e)).toList()); sheet.appendRow([IntCellValue(1), TextCellValue("Item"), DoubleCellValue(10.0)]); // Generate bytes and save final List ? fileBytes = excel.encode(); if (fileBytes != null) { await FileSaver.instance.saveFile( name: "report", bytes: Uint8List.fromList(fileBytes), ext: "xlsx", mimeType: MimeType.microsoftExcel, ); } } Use code with caution. Method 2: Fetching and Downloading Remote Files This approach converts application state or JSON payload