The [GroupDocs.Comparison for .NET] is a C# library which allows you to compare documents and find differences. Compare and merge Microsoft Word, Excel, PowerPoint, OpenDocument, PDF, Text, HTML and [many other documents], retrieve a list of changes between source and target document(s), apply or reject changes and save results with GroupDocs.Comparison API. In addition to this, GroupDocs.Comparison can identify styling and formatting changes - like bold, italic, underlines, strikethroughs, font types, etc.
Compare Two Files or More in C#
Document comparison is one of the most common requirements for today’s programming world. Whether it is to compare word files, compare excel files, PDF documents or even compare text files or any other document format, accuracy is the key factor while comparing.