Excel to JSON | agent view
The same page content and links, with explicit tool capabilities. Tools marked with an API can run directly through HTTP. Other tools require the browser interface or are not connected yet.
Tool capabilities
{
"id": "excel-to-json",
"category": "data-tools",
"built": true,
"requirements": "Sheet/range selection, header rows and cached formula value behavior.",
"implementation": {
"fields": [
{
"key": "sheet",
"label": "Worksheet name (blank = first)",
"value": "",
"type": "text"
}
],
"files": true,
"input": false,
"accept": ".xlsx,.xls,.ods",
"note": "Uses stored cell values; formulas are not recalculated. Check dates, identifiers and cached formula results. CSV/JSON export reads one worksheet.",
"experience": {
"automatic": false,
"single": false,
"label": "Your text",
"placeholder": "Type or paste your input…",
"help": "Up to 1,000,000 characters. Review the settings before running.",
"action": "Convert file"
},
"mode": "explicit",
"interactive": false
},
"execution": "POST /api/v1/tools/excel-to-json/run",
"api": {
"id": "excel-to-json",
"name": "Excel to JSON",
"category": "data-tools",
"description": "Sheet/range selection, header rows and cached formula value behavior.",
"notes": "Uses stored cell values; formulas are not recalculated. Check dates, identifiers and cached formula results. CSV/JSON export reads one worksheet.",
"human_path": "/en/data-tools/excel-to-json/",
"method": "POST",
"endpoint": "/api/v1/tools/excel-to-json/run",
"schema_url": "/api/v1/tools/excel-to-json",
"input_schema": {
"type": "object",
"additionalProperties": false,
"properties": {
"input": {
"type": "string",
"maxLength": 1000000,
"default": "",
"description": "Plain text input. File tools use files instead unless otherwise documented."
},
"options": {
"type": "object",
"additionalProperties": false,
"properties": {
"sheet": {
"type": "string",
"description": "Worksheet name (blank = first)",
"default": ""
}
}
},
"files": {
"type": "array",
"maxItems": 1,
"items": {
"type": "object",
"required": [
"name",
"base64"
],
"additionalProperties": false,
"properties": {
"name": {
"type": "string",
"maxLength": 200,
"description": "Filename only, no path."
},
"mime": {
"type": "string",
"maxLength": 150
},
"bytes": {
"type": "integer",
"minimum": 0,
"description": "Optional decoded byte count; must match content if supplied."
},
"base64": {
"type": "string",
"contentEncoding": "base64",
"description": "File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size."
}
}
}
}
}
},
"output_schema": {
"type": "object",
"required": [
"tool",
"result"
],
"properties": {
"tool": {
"type": "string"
},
"result": {
"type": "object",
"required": [
"text",
"files"
],
"properties": {
"text": {
"type": [
"string",
"null"
]
},
"data": {
"description": "Parsed JSON when the textual result is JSON."
},
"name": {
"type": "string"
},
"mime": {
"type": "string"
},
"files": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"mime",
"bytes",
"base64"
],
"properties": {
"name": {
"type": "string"
},
"mime": {
"type": "string"
},
"bytes": {
"type": "integer"
},
"base64": {
"type": "string",
"contentEncoding": "base64"
}
}
}
}
}
}
}
},
"processing": "Server; same transformation code as browser tools",
"limits": {
"request_bytes": 8388608,
"input_characters": 1000000,
"files_bytes": 5242880,
"max_files": 1,
"timeout_seconds": 12
}
},
"agent_processing": "Server; same transformation code as browser tools",
"browser_agent": {
"supported": true,
"name": "run_current_tool",
"discovery": "WebMCP on the human page in a supporting browser",
"verification": "See audit/API-AUDIT.md; availability is not verification"
}
}Page guide
Sheet/range selection, header rows and cached formula value behavior..
Useful next steps
How to use Excel to JSON
- Choose a file in XLSX, XLS or ODS.
- Review the settings, then choose Convert file.
- Review the result, then use Copy result or a download link when available.
Working with excel to json
JSON represents structured values and nested objects. CSV and TSV represent rows and columns, making them convenient for spreadsheets and bulk imports. Moving between these formats changes what can be represented directly: a nested object needs a defined mapping to a flat table.
Common questions
Can JSON and CSV make a lossless round trip?
Not in every case. CSV does not carry JSON data types or nested structure. Decide how numbers, nulls, missing values and nested arrays should be represented rather than assuming a reverse conversion restores them.
Why does a comma create an extra column?
A separator inside a cell must be quoted using the rules of the file format. Newlines and quotation marks inside cells also need proper escaping. Changing the delimiter can help, but it does not repair malformed quoting.
Continue your workflow: Excel to CSV, CSV to excel, JSON to excel.