Search for pluto_grid in pub.dev and add the package to your project.
pub.dev to install pluto_grid

And add PlutoGrid to your screen by referring to the example code below.

import 'package:flutter/material.dart';
import 'package:pluto_grid/pluto_grid.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'PlutoGrid Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const PlutoGridExamplePage(),
    );
  }
}

/// PlutoGrid Example
//
/// For more examples, go to the demo web link on the github below.
class PlutoGridExamplePage extends StatefulWidget {
  const PlutoGridExamplePage({Key? key}) : super(key: key);

  @override
  State<PlutoGridExamplePage> createState() => _PlutoGridExamplePageState();
}

class _PlutoGridExamplePageState extends State<PlutoGridExamplePage> {
  final List<PlutoColumn> columns = <PlutoColumn>[
    PlutoColumn(
      title: 'Id',
      field: 'id',
      type: PlutoColumnType.text(),
    ),
    PlutoColumn(
      title: 'Name',
      field: 'name',
      type: PlutoColumnType.text(),
    ),
    PlutoColumn(
      title: 'Age',
      field: 'age',
      type: PlutoColumnType.number(),
    ),
    PlutoColumn(
      title: 'Role',
      field: 'role',
      type: PlutoColumnType.select(<String>[
        'Programmer',
        'Designer',
        'Owner',
      ]),
    ),
    PlutoColumn(
      title: 'Joined',
      field: 'joined',
      type: PlutoColumnType.date(),
    ),
    PlutoColumn(
      title: 'Working time',
      field: 'working_time',
      type: PlutoColumnType.time(),
    ),
  ];

  final List<PlutoRow> rows = [
    PlutoRow(
      cells: {
        'id': PlutoCell(value: 'user1'),
        'name': PlutoCell(value: 'Mike'),
        'age': PlutoCell(value: 20),
        'role': PlutoCell(value: 'Programmer'),
        'joined': PlutoCell(value: '2021-01-01'),
        'working_time': PlutoCell(value: '09:00'),
      },
    ),
    PlutoRow(
      cells: {
        'id': PlutoCell(value: 'user2'),
        'name': PlutoCell(value: 'Jack'),
        'age': PlutoCell(value: 25),
        'role': PlutoCell(value: 'Designer'),
        'joined': PlutoCell(value: '2021-02-01'),
        'working_time': PlutoCell(value: '10:00'),
      },
    ),
    PlutoRow(
      cells: {
        'id': PlutoCell(value: 'user3'),
        'name': PlutoCell(value: 'Suzi'),
        'age': PlutoCell(value: 40),
        'role': PlutoCell(value: 'Owner'),
        'joined': PlutoCell(value: '2021-03-01'),
        'working_time': PlutoCell(value: '11:00'),
      },
    ),
  ];

  /// columnGroups that can group columns can be omitted.
  final List<PlutoColumnGroup> columnGroups = [
    PlutoColumnGroup(title: 'Id', fields: ['id'], expandedColumn: true),
    PlutoColumnGroup(title: 'User information', fields: ['name', 'age']),
    PlutoColumnGroup(title: 'Status', children: [
      PlutoColumnGroup(title: 'A', fields: ['role'], expandedColumn: true),
      PlutoColumnGroup(title: 'Etc.', fields: ['joined', 'working_time']),
    ]),
  ];

  /// [PlutoGridStateManager] has many methods and properties to dynamically manipulate the grid.
  /// You can manipulate the grid dynamically at runtime by passing this through the [onLoaded] callback.
  late final PlutoGridStateManager stateManager;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        padding: const EdgeInsets.all(15),
        child: PlutoGrid(
          columns: columns,
          rows: rows,
          columnGroups: columnGroups,
          onLoaded: (PlutoGridOnLoadedEvent event) {
            stateManager = event.stateManager;
          },
          onChanged: (PlutoGridOnChangedEvent event) {
            print(event);
          },
          configuration: const PlutoGridConfiguration(),
        ),
      ),
    );
  }
}

Columns and rows can start with an empty list.
Column groups can be excluded if not needed.
PlutoColumn.field cannot be duplicated.
The keys in PlutoRow.cells must be defined to match PlutoColumn.field.