excel_create

Creates a new Excel (.xlsx) file with headers and optional data rows.

SERVERLocal SOURCElocal-mcp

Medium RISK CLASS

Category Write

Parameters 42 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-local-mcp-local-mcp/excel-create.md

WHAT IT DOES

What excel_create does on Local

AI agents use excel_create to create or update resources in Local, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Local environment.

Parameter	Type	Required	Description
`path`	string	Yes	Output path for the .xlsx file
`rows`	array	—	Array of row arrays with data (optional)
`confirm`	boolean	—	Must be true to create
`headers`	array	Yes	Column headers

Parameters from the server's own tool schema.

RISK

Why excel_create is rated Medium

This tool creates new files and populates them with data, which is a reversible write operation. It does not execute code, delete data, or move money. The medium severity reflects that creating files on a user's system could have downstream consequences if an agent creates unwanted files or populates them with incorrect data, but the operation is fundamentally reversible (files can be deleted).

From the tool's definition Tool name 'excel_create' and description 'Creates a new Excel (.xlsx) file' explicitly indicates file creation and data population via 'with headers and optional data rows'.

Risk signalsAccepts file system path (path)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs excel_create safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Local, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For excel_create, this is the rule to start with:

excel_create Rate-limited

excel_create stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "excel_create": {
      "limits": [
        {
          "counter": "excel_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Local, apply this rule, and every excel_create call is checked against it from then on.

FAQ

Questions about excel_create

What does the excel_create tool do? +

Creates a new Excel (.xlsx) file with headers and optional data rows. It is categorised as a Write tool in the Local MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does excel_create accept? +

excel_create accepts 4 parameters: path, rows, confirm, headers. Required: path, headers. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on excel_create? +

Register the Local MCP server in PolicyLayer and add a rule for excel_create: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Local. Nothing to install.

What risk level is excel_create? +

excel_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit excel_create? +

Yes. Add a rate_limit block to the excel_create rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block excel_create completely? +

Set action: deny in the PolicyLayer policy for excel_create. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides excel_create? +

excel_create is provided by the Local MCP server (local-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Local, and thousands of servers like it.

This server

All 234 Local tools →

Across the catalogue

create_task on 0rca Dojo MCP Server →create-task on Kanban MCP Server →create_package_backup on Android Forensics ADB MCP Server →create_project on Stitch MCP Server → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →