ReoGrid Articles https://reogrid.net/articles Articles on .NET spreadsheet development, Excel know-how, and ReoGrid releases. en Migrating from ReoGrid V3 to V4 — A Practical Guide https://reogrid.net/articles/migrate-reogrid-v3-to-v4 https://reogrid.net/articles/migrate-reogrid-v3-to-v4 A short overview of what changes when upgrading an existing ReoGrid V3 application to V4 — what breaks at compile time, what changes at runtime, and the new APIs worth adopting. Wed, 13 May 2026 00:00:00 GMT reogrid .net migration v4 Display and Edit an Excel File in a WinForms or WPF App with C# https://reogrid.net/articles/display-excel-file-winforms-wpf-csharp https://reogrid.net/articles/display-excel-file-winforms-wpf-csharp How to embed a working Excel viewer inside a .NET desktop app — load .xlsx, let users edit cells and formulas, save back to disk. Minimal WinForms and WPF examples in C#. Mon, 11 May 2026 00:00:00 GMT csharp .net winforms wpf excel xlsx tutorial Export a DataTable to Excel (.xlsx) in C# Without Office Interop https://reogrid.net/articles/export-datatable-to-excel-csharp https://reogrid.net/articles/export-datatable-to-excel-csharp How to write a DataTable out as a real .xlsx file from C# — headers, formats, multiple sheets, and the ASP.NET Core download pattern. Side-by-side examples with ClosedXML, EPPlus, and ReoGrid. Sun, 10 May 2026 00:00:00 GMT csharp .net excel xlsx datatable asp.net-core tutorial Announcing ReoGrid 4.4 — Performance Improvements for Large-Scale Data https://reogrid.net/articles/reogrid-v4-4-release https://reogrid.net/articles/reogrid-v4-4-release ReoGrid 4.4 maintains full API compatibility while delivering ~11,700× faster bulk data loading with conditional formatting, ~10× faster sorting of 10,000 rows, and ~3× faster bulk loading via SetRangeData. Thu, 30 Apr 2026 00:00:00 GMT reogrid spreadsheet .net performance release Excel-Style Conditional Formatting in .NET Applications https://reogrid.net/articles/excel-style-conditional-formatting-dotnet https://reogrid.net/articles/excel-style-conditional-formatting-dotnet How to add conditional formatting — color highlights, data bars, icon sets — to a .NET WinForms or WPF spreadsheet. Covers the rule model, performance pitfalls when applied to large ranges, and patterns that round-trip cleanly to Excel. Tue, 28 Apr 2026 00:00:00 GMT .net winforms wpf conditional-formatting excel tutorial Choosing the Right Editable Grid for WinForms and WPF Apps https://reogrid.net/articles/choosing-editable-grid-winforms-wpf https://reogrid.net/articles/choosing-editable-grid-winforms-wpf A pragmatic guide to picking a data grid for desktop .NET apps. Compares DataGridView, WPF DataGrid, third-party grids, and full spreadsheet components — and explains which problems each one is actually built to solve. Wed, 22 Apr 2026 00:00:00 GMT winforms wpf .net data-grid spreadsheet Reading and Writing Excel Files in C# Without Office Interop https://reogrid.net/articles/reading-writing-excel-files-csharp https://reogrid.net/articles/reading-writing-excel-files-csharp A practical guide to handling .xlsx files from C# without installing Microsoft Office. Compares the main approaches — OpenXML SDK, ClosedXML, EPPlus, NPOI, and ReoGrid — and shows working code for the common cases. Wed, 15 Apr 2026 00:00:00 GMT csharp .net excel xlsx tutorial