Devolutions.AvaloniaControls.SpreadsheetEditor 2026.7.27

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Devolutions.AvaloniaControls.SpreadsheetEditor --version 2026.7.27
                    


                    

                
NuGet\Install-Package Devolutions.AvaloniaControls.SpreadsheetEditor -Version 2026.7.27
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Devolutions.AvaloniaControls.SpreadsheetEditor" Version="2026.7.27" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Devolutions.AvaloniaControls.SpreadsheetEditor" Version="2026.7.27" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Devolutions.AvaloniaControls.SpreadsheetEditor" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Devolutions.AvaloniaControls.SpreadsheetEditor --version 2026.7.27
                    


                    

                
#r "nuget: Devolutions.AvaloniaControls.SpreadsheetEditor, 2026.7.27"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Devolutions.AvaloniaControls.SpreadsheetEditor@2026.7.27
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Devolutions.AvaloniaControls.SpreadsheetEditor&version=2026.7.27
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Devolutions.AvaloniaControls.SpreadsheetEditor&version=2026.7.27
                    


                            Install as a Cake Tool

Devolutions.AvaloniaControls.SpreadsheetEditor

An Excel-like spreadsheet editor control for Avalonia UI. It uses a custom grid (not the Avalonia DataGrid) so cells can merge and host rich content, and it ships with:

  • A custom rendering grid with cell merging, frozen headers, and drag-to-select.
  • Rich in-cell editing (bold/italic/underline/strikethrough, fonts, colors, alignment).
  • A hand-rolled = formula engine (arithmetic, ranges, SUM/AVERAGE/IF/…, named ranges, live recalc).
  • Charts, multi-sheet tabs, infinite rows/columns, undo/redo, clipboard, and HTML print.

Requirements

This control depends on the commercial Avalonia Accelerate packages (Avalonia.Controls.RichTextEditor, Avalonia.Controls.Charts). You must supply your own Avalonia UI license key (via the <AvaloniaUILicenseKey> MSBuild item or the standard licensing mechanism) in the application that consumes this control. See https://avaloniaui.net/.

Setup

Add the required theme includes to your App.axaml (alongside FluentTheme):

<Application.Styles>
    <FluentTheme />
    <StyleInclude Source="avares://Avalonia.Controls.RichTextEditor/Themes/Default.axaml" />
    <StyleInclude Source="avares://Avalonia.Controls.Charts/Themes/Default.axaml" />
</Application.Styles>

Usage

xmlns:se="clr-namespace:SpreadsheetEditor.Controls;assembly=SpreadsheetEditor.Controls"
...
<se:SpreadsheetEditor x:Name="Editor" />

The control exposes an integration API similar to Avalonia's RichTextEditor: IsReadOnly, Undo()/Redo() + CanUndo/CanRedo, SelectAll(), SelectedRange, and the ContentChanged, SelectionChanged, and IsReadOnlyChanged events. Load data via LoadSheet, LoadWorkbook, LoadCellData, or LoadRows; read it back with GetCellData/GetRows.

Excel (.xlsx) files — included

Excel read/write is built in (backed by ClosedXML plus OOXML chart parsing), so no extra package is needed:

using System.IO;

// Load an .xlsx (every worksheet → one tab) into the control:
await using (FileStream fs = File.OpenRead("book.xlsx"))
    editor.OpenXlsx(fs);

// Save the active sheet back to .xlsx:
await using (FileStream fs = File.Create("out.xlsx"))
    editor.SaveXlsx(fs);

For headless / non-UI use, the readers/writers are also available directly via SpreadsheetEditor.Controls.Xlsx.XlsxFile (ReadWorkbook/Read/Write) returning the library's SheetData model.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2026.7.27 22 7/27/2026
2026.7.22 39 7/22/2026