This release keeps dependencies and maintenance posture current for teams operating this tool.
✓ No known CVEs patched in this version
Topics
+14 more
ReleasePort's take
Light signalv1.8.57 includes automatic MCP Server and CLI integration to VS Code Extension with skill registration. Distribution also available via standalone executables, .NET global tools (.NET 10+), and Agent Skills packages.
Why it matters: Developers now access excel-mcp and CLI via four channels: VS Code Extension (automatic), .NET tools (requires .NET 10), standalone executables, or Agent Skills. Evaluate distribution options for your environment.
Summary
AI summaryMinor fixes and improvements.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Feature | Medium |
VS Code Extension includes both MCP Server and CLI (excelcli) automatically. VS Code Extension includes both MCP Server and CLI (excelcli) automatically. Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Feature | Medium |
Agent skills (excel-mcp + excel-cli) registered automatically via chatSkills in VS Code Extension. Agent skills (excel-mcp + excel-cli) registered automatically via chatSkills in VS Code Extension. Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Feature | Medium |
Standalone executables available for MCP Server and CLI without .NET runtime. Standalone executables available for MCP Server and CLI without .NET runtime. Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Feature | Medium |
NuGet package provides global .NET tools for MCP Server and CLI, requiring .NET 10 runtime. NuGet package provides global .NET tools for MCP Server and CLI, requiring .NET 10 runtime. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Feature | Medium |
Agent Skills zip available for AI coding assistants integration. Agent Skills zip available for AI coding assistants integration. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Feature | Low |
VS Code Extension installs without needing .NET runtime or SDK. VS Code Extension installs without needing .NET runtime or SDK. Source: granite4.1:30b@2026-05-23-audit Confidence: low |
— |
| Feature | Low |
Claude Desktop (MCPB) installer is provided as a .mcpb file. Claude Desktop (MCPB) installer is provided as a .mcpb file. Source: granite4.1:30b@2026-05-23-audit Confidence: low |
— |
| Refactor | Low |
Installation options reorganized into VS Code Extension, Claude Desktop, Standalone, and NuGet categories. Installation options reorganized into VS Code Extension, Claude Desktop, Standalone, and NuGet categories. Source: granite4.1:30b@2026-05-23-audit Confidence: low |
— |
Full changelog
ExcelMcp 1.8.57
What's New
See repository for details.
Installation Options
VS Code Extension (Recommended)
- Search "ExcelMcp" in VS Code Marketplace and click Install
- Or download
excelmcp-1.8.57.vsixbelow - Self-contained: no .NET runtime or SDK required
- Includes both MCP Server and CLI (
excelcli) - Agent skills (excel-mcp + excel-cli) registered automatically via
chatSkills
Claude Desktop (MCPB)
- Download
excel-mcp-1.8.57.mcpband double-click to install
Standalone Executables (Primary — no .NET runtime required)
- MCP Server: Download
ExcelMcp-MCP-Server-1.8.57-windows.zip, extractmcp-excel.exe - CLI: Download
ExcelMcp-CLI-1.8.57-windows.zip, extractexcelcli.exe - Add the exe(s) to your PATH, then configure your MCP client with command
mcp-excel
NuGet (.NET Tool) (Secondary — requires .NET 10 runtime)
dotnet tool install --global Sbroenne.ExcelMcp.McpServer
dotnet tool install --global Sbroenne.ExcelMcp.CLI
Agent Skills (for AI coding assistants)
- VS Code Extension includes both skills automatically (excel-mcp + excel-cli)
- Install via Skills CLI:
npx skills add sbroenne/mcp-server-excel --skill excel-clior--skill excel-mcp - Or download
excel-skills-v1.8.57.zip
Requirements
- Windows OS
- Microsoft Excel 2016+
- No .NET runtime required for VS Code Extension, MCPB, or standalone executables
- .NET 10 Runtime required for NuGet (.NET tool) installation only
Documentation
Weekly OSS security release digest.
The CVE patches and breaking changes that affected production tools this week. One email, every Sunday.
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About sbroenne/mcp-server-excel
Full-featured Excel MCP server. 173 operations: Power Query, DAX, VBA, PivotTables, Tables, Charts, ranges, formatting. 100% Excel compatibility - uses Excel app instead of creating .xlsx files. Windows only.
Related context
Beta — feedback welcome: [email protected]