Comparing Word documents is a common requirement when working with reports, contracts, or any content that undergoes frequent revisions. In C#, you can automate this process to detect changes, highlight differences, and generate a consolidated comparison document. This article walks through several ways to compare Word documents using C#. Installing the Required Library Before you start, install the Free Spire.Doc library via NuGet. In your Visual Studio Package Manager Console, run: Install-Package FreeSpire.Doc This library provides APIs to load, edit, and compare Word documents in C#. Once installed, import the following namespaces in your class: using Spire.Doc ; using Spire.Doc.Documents.Comparison ; 1. Basic Word Document Comparison in Csharp The simplest scenario is to compare two documents and mark the differences with tracked changes. This approach uses the Document.Compare method to highlight changes under a specified author name.…