{"id":"xls-mcp-servers","name":"xls-mcp-servers","af_score":56.5,"security_score":35.0,"reliability_score":26.2,"what_it_does":"Provides an MCP server (Python) exposing tools to read, write, create, and update Excel 97-2003 .xls (binary) files, including listing sheet names and retrieving basic spreadsheet metadata.","best_when":"You need agent-driven access to legacy Excel .xls files and can safely permit file-system reads/writes from the MCP server runtime environment.","avoid_when":"When you need .xlsx support, strong multi-tenant security controls, or robust, documented operational guarantees (SLA, retry semantics, rate limits).","last_evaluated":"2026-04-04T21:37:52.821181+00:00","has_mcp":true,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_gotchas":["Only supports .xls (Excel 97-2003 binary); .xlsx will not work.","Dates are converted to strings (YYYY-MM-DD), which may affect round-tripping or type expectations.","If ALLOWED_PATHS is empty, the server may allow access to all paths—dangerous in agent contexts.","If the target file is open by Excel/another process, write/update may fail.","Complex formatting may not be fully preserved after copying/modifying with xlutils."],"error_quality":0.0}