Building Complex "Excel-Style" Dashboards in Flutter: Tables, Charts, and Exports

When you transition from building consumer-facing Flutter apps to enterprise software (ERPs, CRM, Financial Tools), you quickly run into a major roadblock: heavy data visualization. Clients inevitably ask for "Excel-style" features. They want massive datasets, frozen left columns (sticky headers), nested sub-headers, editable cells, and a beautiful KPI dashboard sitting right on top of it. If you've tried building this, you know the pain. You install one package for charts, another for exporting, and then spend a week writing custom ScrollControllers for your tables. After spending weeks syncing controllers on a recent project, I realized the community needed a better way. Enter nrb (Nexora Report Builder) I built the nrb package to be an all-in-one layout engine for heavy data grids and dashboards. Pub.dev: https://pub.dev/packages/nrb Template Source Code: https://github.com/mehedisoftdev/nrb_example_template.git Graph & Charts Export Features Nested Header Table Solving the Layout N