Installation

Released OfficeIMO .NET packages are distributed through NuGet.org. The PowerShell module is distributed through the PowerShell Gallery.

Install only the packages an application needs and keep coordinated OfficeIMO package references on the same version. The commands below select the current stable release from NuGet.

OfficeIMO.Tool

Install the command-line tool globally when officeimo should be available from any directory:

dotnet tool install --global OfficeIMO.Tool
officeimo --version

For a repository-local installation, create or reuse a .NET tool manifest:

dotnet new tool-manifest
dotnet tool install OfficeIMO.Tool
dotnet tool run officeimo help

The SDK also resolves the local tool through this shorthand:

dotnet officeimo help

The OfficeIMO.Tool guide covers conversion, extraction, inspection, and MCP workflows.

.NET Packages

OfficeIMO.Word

The core Word document library. Create, read, and modify .docx files.

.NET CLI

dotnet add package OfficeIMO.Word

Package Manager Console

Install-Package OfficeIMO.Word

OfficeIMO.Excel

Create and manipulate Excel .xlsx workbooks.

.NET CLI

dotnet add package OfficeIMO.Excel

Package Manager Console

Install-Package OfficeIMO.Excel

OfficeIMO.Markdown

Fluent Markdown builder, typed reader/AST, and HTML renderer. Zero external dependencies.

.NET CLI

dotnet add package OfficeIMO.Markdown

Package Manager Console

Install-Package OfficeIMO.Markdown

OfficeIMO.CSV

Strongly-typed CSV document model with validation and streaming.

.NET CLI

dotnet add package OfficeIMO.CSV

Package Manager Console

Install-Package OfficeIMO.CSV

OfficeIMO.Word.Html

Bidirectional Word-to-HTML conversion powered by AngleSharp.

.NET CLI

dotnet add package OfficeIMO.Word.Html

OfficeIMO.Word.Markdown

Bidirectional Word-to-Markdown conversion built on OfficeIMO.Markdown.

.NET CLI

dotnet add package OfficeIMO.Word.Markdown

OfficeIMO.Word.Pdf

Word-to-PDF conversion built on the first-party OfficeIMO.Pdf engine.

.NET CLI

dotnet add package OfficeIMO.Word.Pdf

OfficeIMO.Excel.Pdf

Excel workbook-to-PDF conversion built on the first-party OfficeIMO.Pdf engine.

.NET CLI

dotnet add package OfficeIMO.Excel.Pdf

OfficeIMO.Pdf

Direct PDF generation, reading, editing, rendering, and signature workflows.

.NET CLI

dotnet add package OfficeIMO.Pdf

PSWriteOffice (PowerShell Module)

PSWriteOffice wraps OfficeIMO for use from PowerShell. Install it from the PowerShell Gallery:

Install-Module -Name PSWriteOffice -Scope CurrentUser

To install for all users (requires elevation):

Install-Module -Name PSWriteOffice -Scope AllUsers

Update to the latest version:

Update-Module -Name PSWriteOffice

Verifying Installation

After installing a .NET package, verify it builds correctly:

dotnet build

For PSWriteOffice, verify the module loads:

Import-Module PSWriteOffice
Get-Module PSWriteOffice

Dependencies

OfficeIMO.Word and OfficeIMO.Excel depend on:

• DocumentFormat.OpenXml ([3.5.1, 4.0.0)) — The Microsoft Open XML SDK.
• OfficeIMO.Core — The zero-dependency shared lifecycle, package-safety, data-mapping, color, image, and drawing foundation used by the document packages.

OfficeIMO.Word and OfficeIMO.Excel also use a compatibility helper on older targets:

• Microsoft.Bcl.AsyncInterfaces (10.0.9) — Async interface compatibility for netstandard2.0 and net472.

OfficeIMO.Excel additionally uses System.Text.Json ([10.0.7,11.0.0)) for JSON support on netstandard2.0 and net472.

OfficeIMO.Word.Html uses the first-party OfficeIMO.Html package, which depends on:

• AngleSharp (1.5.2) — HTML parsing and DOM manipulation.
• AngleSharp.Css (1.0.0-beta.216) — CSS parsing for style mapping.

OfficeIMO.Pdf depends on the first-party OfficeIMO.Core and OfficeIMO.Security packages. OfficeIMO.Security brings BouncyCastle.Cryptography ([2.6.2,3.0.0)) for cryptographic and signature support.

OfficeIMO.CSV uses System.Buffers (4.5.1) on netstandard2.0 and .NET Framework compatibility targets. OfficeIMO.Markdown has no third-party runtime dependency beyond the .NET runtime and first-party OfficeIMO.Core package.