Cellwright 0.1.3

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Cellwright --version 0.1.3
                    


                    

                
NuGet\Install-Package Cellwright -Version 0.1.3
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="Cellwright" Version="0.1.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Cellwright" Version="0.1.3" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Cellwright" />
                    


                            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 Cellwright --version 0.1.3
                    


                    

                
#r "nuget: Cellwright, 0.1.3"
#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 Cellwright@0.1.3
#: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=Cellwright&version=0.1.3
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Cellwright&version=0.1.3
                    


                            Install as a Cake Tool

Cellwright

A modern .NET 10 Excel library, layered like System.Text.Json: primitives → constant-memory streaming → mutable DOM → source-generated typed mapping. Data-oriented cell storage — column slices in 512-row pages, not an object per cell. Async-first I/O, zero reflection, Native AOT and trimming safe. Apache-2.0 licensed.

using Cellwright;

// Read
Workbook book = await Workbook.LoadAsync("report.xlsx");
Worksheet sheet = book.Sheets[0];
CellValue total = sheet["B10"];

// Edit
sheet["C2"] = 1234.5;
sheet.Cell("C2").SetStyle(CellStyle.Default.Bold().NumberFormat("#,##0.00"));
sheet.Cell("C3").SetFormula("SUM(C1:C2)");

// Write
await book.SaveAsync("report.xlsx");

What the core package covers

  • Constant-memory streaming: forward-only XlsxWriter (UTF-8 straight to the wire) and XlsxReader (IAsyncEnumerable<RowData>) for files of any size.
  • A full worksheet model: values, styles, formulas (round-tripped as text), merged cells, freeze panes, hidden rows and columns, grouping, auto-filter, hyperlinks, notes and threaded comments, Excel tables, data validation, conditional formatting, page setup, protection, document properties, rich text runs, embedded charts (read and create), pictures.
  • Lossless editing of foreign files: pivot tables, themes, macros and anything else the model does not represent travels through byte for byte; renaming a sheet retargets formulas, defined names and chart references.
  • Styles per ISO/IEC 29500 §18.8: immutable records with free interning, fluent builders, pattern and gradient fills, theme colors, cell protection.
  • Recovery-oriented loading: recoverable problems become coded WorkbookWarnings instead of exceptions, and hostile input (zip bombs, wrong formats) is named rather than crashed on.
  • Markdown export: book.ToMarkdown() renders sheets as GitHub Flavored Markdown tables.

The Cellwright family

Package Adds
Cellwright The core: primitives, streaming, DOM (this package)
Cellwright.Formulas Calculation engine: 447 functions, incremental recalc, dynamic array spill
Cellwright.Mapping Typed row mapping via a Roslyn source generator
Cellwright.Xls Legacy .xls read/write, .xlsb read, encryption, VBA extraction
Cellwright.Pdf Prints workbooks to PDF the way Excel prints them

Documentation

Guides, per-feature docs and the full list of deliberate limitations live in the repository: https://github.com/WrightDocumentSuite/cellwright

Every deviation from the spec is documented and reported through diagnostics — nothing is silently dropped or approximated without saying so.

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.

  • net10.0

    • No dependencies.

NuGet packages (4)

Showing the top 4 NuGet packages that depend on Cellwright:

Package Downloads
Cellwright.Formulas

Formula engine for Cellwright: span-based parser into a compact RPN program, allocation-light stack-machine evaluator with Excel semantics, dependency-driven incremental recalculation and 447 worksheet functions. Zero reflection, Native AOT ready.
Cellwright.Xls

Binary Excel format support for Cellwright: reads .xls (Excel 97-2003 and older) and .xlsb (BIFF12) workbooks into the same Workbook model, decrypts password-protected files of any format, decodes formulas, extracts VBA macro source, and writes BIFF8 back. Span-based, allocation-light, Native AOT ready.
Cellwright.Mapping

Typed row mapping for Cellwright via a Roslyn incremental source generator: zero reflection, Native AOT ready. Read and write sheets as strongly-typed records.
Cellwright.Pdf

Renders Cellwright workbooks to PDF the way Excel prints them: the grid with its styles and number formats, two-dimensional pagination with scaling, repeated titles, headers and footers, on top of Inkwright. No Office and no native dependency.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.1.3 146 8/10/2026
0.1.2 154 8/1/2026