Document-to-Markdown conversion API

Export XLSX to Markdown in C#

Convert XLSX files to structured Markdown in C#, ASP.NET, VB.NET and .NET Core applications. Preserve headings, lists, tables, links, and images with full control over image export strategies.

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How to export XLSX to Markdown in C#

With GroupDocs.Markdown for .NET you can export XLSX to Markdown in a few steps.

Install GroupDocs.Markdown from NuGet: dotnet add package GroupDocs.Markdown
Create an instance of MarkdownConverter with the XLSX file path.
Call Convert() to export the XLSX file to Markdown.
Get the Markdown output as a string via result.Content, or save it directly to a file.

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// Set up input XLSX file
string filePath = "input.xlsx";

// Instantiate MarkdownConverter
using (var converter = new MarkdownConverter(filePath))
{
    // Export to Markdown and save to file
    converter.Convert("output.md");
}

dotnet add package GroupDocs.Markdown

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About GroupDocs.Markdown for .NET

GroupDocs.Markdown for .NET is an on-premise API that exports XLSX and 30+ other document formats to clean, structured Markdown. The output preserves document structure — headings, lists, tables, links, and images — making it ideal for AI/LLM pipelines, RAG systems, static site generators, and content management workflows. Choose how to handle images: embed as Base64, save to a folder with relative paths, skip, or provide a custom handler. Supports .NET Framework 4.6.2, .NET 6, 8, and 10 on Windows and Linux. No cloud connection or third-party software required.

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