Tag: #excel
4 articles
-
Display and Edit an Excel File in a WinForms or WPF App with C#
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#.
-
Export a DataTable to Excel (.xlsx) in C# Without Office Interop
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.
-
Excel-Style Conditional Formatting in .NET Applications
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.
-
Reading and Writing Excel Files in C# Without Office Interop
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.