MCP servers for Claude Desktop · Files & office documents
Best files & office documents MCP server for Claude Desktop, tested
In ToolPassed's hands-on tests in Claude Desktop, Filesystem (reference) is our provisional candidate for files & office documents: it passed install, connect, tools and an agent task on 2026-10-14. We ran 4 files & office documents MCP servers in Claude Desktop; 4 passed every step.
Last tested · runs from 2026-10-14 to 2026-10-21 · one run per server · How we test
Results in Claude Desktop
| Server | Claude Desktop |
|---|---|
| Filesystem (reference) Files & office documents | Passed 2026-10-14 · install, connect, tools, agent task |
| draw.io MCP (official) Files & office documents | Passed 2026-10-21 · install, connect, tools, agent task |
| Excel MCP Files & office documents | Passed 2026-10-14 · install, connect, tools, agent task |
| Draw.io MCP Files & office documents | Passed 2026-10-14 · install, connect, tools, agent task |
Dated results
- Filesystem (reference) passed in Claude Desktop on 2026-10-14 (Claude Desktop 2.37337.1 (Linux beta), package version not recorded, connected in 2.0s). Full result
- draw.io MCP (official) passed in Claude Desktop on 2026-10-21 (Claude Desktop 2.37337.1 (Linux beta, Electron 44.7.0), @drawio/mcp 1.10.0, connected in 1.0s). Full result
- Excel MCP passed in Claude Desktop on 2026-10-14 (Claude Desktop 2.37337.1 (Linux beta), package version not recorded, connected in 2.5s). Full result
- Draw.io MCP passed in Claude Desktop on 2026-10-14 (Claude Desktop 2.37337.1 (Linux beta), package version not recorded, connected in 2.3s). Full result
Why Filesystem (reference) is the candidate
Filesystem (reference) passed every step in Claude Desktop. It is the group’s site-wide candidate (judged 2026-10-22): Wrote a fresh code to a file and read it back in every client we test (Claude Code, Cursor, Claude Desktop and ChatGPT (Codex)), and the second runs in Claude Code, Cursor and ChatGPT (Codex) passed again. In Claude Code it needed the test folder added to permissions.additionalDirectories. Draw.io also passed in all 4 clients (one run each) but only with its editor open in a browser. Excel was the earlier pick: it passed twice in Claude Code and Cursor, but its second ChatGPT (Codex) run failed on Oct 21, 2026, so by judging rule 1 it now ranks below both.
Provisional: based on one dated run per app (no repeat runs yet), so treat it as a candidate, not a final pick. How we test.
Same servers in all 4 apps
| Server | Claude Code | Cursor | Claude Desktop | ChatGPT (Codex) |
|---|---|---|---|---|
| Filesystem (reference) Files & office documents | Passed 2026-10-19 · install, connect, tools, agent task | Passed 2026-10-19 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task | Passed 2026-10-20 · install, connect, tools, agent task |
| draw.io MCP (official) Files & office documents | Partial 2026-10-15 · verified connected, install; agent task not run | Partial 2026-10-15 · verified connected, install, tools visible; agent task not run | Passed 2026-10-21 · install, connect, tools, agent task | Passed 2026-10-21 · install, connect, tools, agent task |
| Excel MCP Files & office documents | Passed 2026-10-21 · install, connect, tools, agent task | Passed 2026-10-21 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task | Failed 2026-10-21 · agent task failed (file not created: /workspace/timmy/harness/sandbox/office/out-codex.xlsx) |
| Draw.io MCP Files & office documents | Passed 2026-10-13 · install, connect, tools, agent task | Passed 2026-10-13 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task |
What failed or is partial in Claude Desktop
None of these servers failed in Claude Desktop.
Install in Claude Desktop
The exact snippet we tested is on the Filesystem (reference) page (pick the Claude Desktop tab). Not connecting? Claude Desktop MCP troubleshooting.
Not tested in Claude Desktop yet
SEAL (sealnet-mcp), Docling MCP, OpenTakeoff, Next AI Draw.io, Framelink Figma MCP, Markdownify MCP, Melso MCP, DropHTML, Excel MCP Server (real Excel on Windows). Listed from their source; no result in Claude Desktop yet.
Questions
What is the best files & office documents MCP server for Claude Desktop?
In ToolPassed's hands-on tests in Claude Desktop, Filesystem (reference) is our provisional candidate for files & office documents: it passed install, connect, tools and an agent task on 2026-10-14. We ran 4 files & office documents MCP servers in Claude Desktop; 4 passed every step.
Does Filesystem (reference) work with Claude Desktop?
Filesystem (reference) passed in Claude Desktop on 2026-10-14 (Claude Desktop 2.37337.1 (Linux beta), package version not recorded, connected in 2.0s).
More: all MCP servers tested in Claude Desktop · Files & office documents in every app · How we test
