{
  "title": "XLSX viewer",
  "human_url": "https://happytails.ai/en/spreadsheet-tools/xlsx-viewer/",
  "agent_url": "https://happytails.ai/agents/en/spreadsheet-tools/xlsx-viewer/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/spreadsheet-tools/xlsx-viewer.md",
  "content": "XLSX viewer\nOpen an Excel or OpenDocument worksheet as a readable table.\nUseful next steps\nCompare CSV\nKeyed row diff versus position diff.\nMerge CSV\nAppend with header alignment.\nCSV join\nInner/left/full joins on explicit keys.\nHow to use XLSX viewer\nChoose a file in XLSX, XLS or ODS.\nReview the settings, then choose Run XLSX viewer.\nReview the result, then use Copy result or a download link when available.\nWhat to expect\nOpen an Excel or OpenDocument worksheet as a readable table. Search across all rows and columns, then use Previous rows and Next rows to browse 50 rows at a time. Wide tables have column navigation. Click a column heading to sort. Search and sort change the preview only; copy and download retain all data in the original order. Stored spreadsheet values are shown; formulas are not recalculated.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Compare CSV Keyed row diff versus position diff.",
      "url": "https://happytails.ai/en/spreadsheet-tools/compare-csv/"
    },
    {
      "name": "Merge CSV Append with header alignment.",
      "url": "https://happytails.ai/en/spreadsheet-tools/merge-csv/"
    },
    {
      "name": "CSV join Inner/left/full joins on explicit keys.",
      "url": "https://happytails.ai/en/spreadsheet-tools/csv-join/"
    }
  ],
  "tool": {
    "id": "xlsx-viewer",
    "category": "spreadsheet-tools",
    "built": true,
    "requirements": "Local workbook browsing with formula/value distinction and date-system handling.",
    "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": null
      },
      "mode": "explicit",
      "interactive": false
    },
    "execution": "POST /api/v1/tools/xlsx-viewer/run",
    "api": {
      "id": "xlsx-viewer",
      "name": "XLSX viewer",
      "category": "spreadsheet-tools",
      "description": "Open an Excel or OpenDocument worksheet as a readable table.",
      "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/spreadsheet-tools/xlsx-viewer/",
      "method": "POST",
      "endpoint": "/api/v1/tools/xlsx-viewer/run",
      "schema_url": "/api/v1/tools/xlsx-viewer",
      "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"
    }
  },
  "markdown": "# XLSX viewer\n\n- Human page: https://happytails.ai/en/spreadsheet-tools/xlsx-viewer/\n- Markdown: https://happytails.ai/en/spreadsheet-tools/xlsx-viewer.md\n- Structured JSON: https://happytails.ai/agents/en/spreadsheet-tools/xlsx-viewer/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `xlsx-viewer` |\n| Category | spreadsheet-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Use the visible action or interactive controls. |\n| Browser processing | Browser; see tool notes for network behavior. |\n| HTTP API | /api/v1/tools/xlsx-viewer/run |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nUses stored cell values; formulas are not recalculated. Check dates, identifiers and cached formula results. CSV/JSON export reads one worksheet.\n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\nAccepted browser files: `.xlsx,.xls,.ods`. Choose one file.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `sheet` | Worksheet name (blank = first) | text | \"\" |  |\n\n### HTTP contract\n\nAPI calls process supplied data on the server. The website origin is `https://happytails.ai`. Server API hosting is not connected on the public website yet. Use your local server origin to test these requests.\n\n```http\nPOST https://happytails.ai/api/v1/tools/xlsx-viewer/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/xlsx-viewer.md) · [Shared API guide](https://happytails.ai/en/api.md)\n\n#### Limits\n\n| Limit | Value |\n| --- | --- |\n| request_bytes | 8388608 |\n| input_characters | 1000000 |\n| files_bytes | 5242880 |\n| max_files | 1 |\n| timeout_seconds | 12 |\n\n#### Complete input schema\n\n```json\n{\n  \"type\": \"object\",\n  \"additionalProperties\": false,\n  \"properties\": {\n    \"input\": {\n      \"type\": \"string\",\n      \"maxLength\": 1000000,\n      \"default\": \"\",\n      \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n    },\n    \"options\": {\n      \"type\": \"object\",\n      \"additionalProperties\": false,\n      \"properties\": {\n        \"sheet\": {\n          \"type\": \"string\",\n          \"description\": \"Worksheet name (blank = first)\",\n          \"default\": \"\"\n        }\n      }\n    },\n    \"files\": {\n      \"type\": \"array\",\n      \"maxItems\": 1,\n      \"items\": {\n        \"type\": \"object\",\n        \"required\": [\n          \"name\",\n          \"base64\"\n        ],\n        \"additionalProperties\": false,\n        \"properties\": {\n          \"name\": {\n            \"type\": \"string\",\n            \"maxLength\": 200,\n            \"description\": \"Filename only, no path.\"\n          },\n          \"mime\": {\n            \"type\": \"string\",\n            \"maxLength\": 150\n          },\n          \"bytes\": {\n            \"type\": \"integer\",\n            \"minimum\": 0,\n            \"description\": \"Optional decoded byte count; must match content if supplied.\"\n          },\n          \"base64\": {\n            \"type\": \"string\",\n            \"contentEncoding\": \"base64\",\n            \"description\": \"File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size.\"\n          }\n        }\n      }\n    }\n  }\n}\n```\n\n#### Complete output schema\n\n```json\n{\n  \"type\": \"object\",\n  \"required\": [\n    \"tool\",\n    \"result\"\n  ],\n  \"properties\": {\n    \"tool\": {\n      \"type\": \"string\"\n    },\n    \"result\": {\n      \"type\": \"object\",\n      \"required\": [\n        \"text\",\n        \"files\"\n      ],\n      \"properties\": {\n        \"text\": {\n          \"type\": [\n            \"string\",\n            \"null\"\n          ]\n        },\n        \"data\": {\n          \"description\": \"Parsed JSON when the textual result is JSON.\"\n        },\n        \"name\": {\n          \"type\": \"string\"\n        },\n        \"mime\": {\n          \"type\": \"string\"\n        },\n        \"files\": {\n          \"type\": \"array\",\n          \"items\": {\n            \"type\": \"object\",\n            \"required\": [\n              \"name\",\n              \"mime\",\n              \"bytes\",\n              \"base64\"\n            ],\n            \"properties\": {\n              \"name\": {\n                \"type\": \"string\"\n              },\n              \"mime\": {\n                \"type\": \"string\"\n              },\n              \"bytes\": {\n                \"type\": \"integer\"\n              },\n              \"base64\": {\n                \"type\": \"string\",\n                \"contentEncoding\": \"base64\"\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n}\n```\n\n#### Error and retry handling\n\nFailures return a non-200 status and `error.code` plus `error.message`. Correct invalid input before retrying; retry server-busy responses with bounded backoff. Returned files contain Base64 data, not persistent download URLs. Decode and inspect the output before treating conversion as successful. See the shared API guide for the complete status and timeout rules.\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nLocal workbook browsing with formula/value distinction and date-system handling.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n  \"id\": \"xlsx-viewer\",\n  \"category\": \"spreadsheet-tools\",\n  \"built\": true,\n  \"requirements\": \"Local workbook browsing with formula/value distinction and date-system handling.\",\n  \"implementation\": {\n    \"fields\": [\n      {\n        \"key\": \"sheet\",\n        \"label\": \"Worksheet name (blank = first)\",\n        \"value\": \"\",\n        \"type\": \"text\"\n      }\n    ],\n    \"files\": true,\n    \"input\": false,\n    \"accept\": \".xlsx,.xls,.ods\",\n    \"note\": \"Uses stored cell values; formulas are not recalculated. Check dates, identifiers and cached formula results. CSV/JSON export reads one worksheet.\",\n    \"experience\": {\n      \"automatic\": false,\n      \"single\": false,\n      \"label\": \"Your text\",\n      \"placeholder\": \"Type or paste your input…\",\n      \"help\": \"Up to 1,000,000 characters. Review the settings before running.\",\n      \"action\": null\n    },\n    \"mode\": \"explicit\",\n    \"interactive\": false\n  },\n  \"execution\": \"POST /api/v1/tools/xlsx-viewer/run\",\n  \"api\": {\n    \"id\": \"xlsx-viewer\",\n    \"name\": \"XLSX viewer\",\n    \"category\": \"spreadsheet-tools\",\n    \"description\": \"Open an Excel or OpenDocument worksheet as a readable table.\",\n    \"notes\": \"Uses stored cell values; formulas are not recalculated. Check dates, identifiers and cached formula results. CSV/JSON export reads one worksheet.\",\n    \"human_path\": \"/en/spreadsheet-tools/xlsx-viewer/\",\n    \"method\": \"POST\",\n    \"endpoint\": \"/api/v1/tools/xlsx-viewer/run\",\n    \"schema_url\": \"/api/v1/tools/xlsx-viewer\",\n    \"input_schema\": {\n      \"type\": \"object\",\n      \"additionalProperties\": false,\n      \"properties\": {\n        \"input\": {\n          \"type\": \"string\",\n          \"maxLength\": 1000000,\n          \"default\": \"\",\n          \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n        },\n        \"options\": {\n          \"type\": \"object\",\n          \"additionalProperties\": false,\n          \"properties\": {\n            \"sheet\": {\n              \"type\": \"string\",\n              \"description\": \"Worksheet name (blank = first)\",\n              \"default\": \"\"\n            }\n          }\n        },\n        \"files\": {\n          \"type\": \"array\",\n          \"maxItems\": 1,\n          \"items\": {\n            \"type\": \"object\",\n            \"required\": [\n              \"name\",\n              \"base64\"\n            ],\n            \"additionalProperties\": false,\n            \"properties\": {\n              \"name\": {\n                \"type\": \"string\",\n                \"maxLength\": 200,\n                \"description\": \"Filename only, no path.\"\n              },\n              \"mime\": {\n                \"type\": \"string\",\n                \"maxLength\": 150\n              },\n              \"bytes\": {\n                \"type\": \"integer\",\n                \"minimum\": 0,\n                \"description\": \"Optional decoded byte count; must match content if supplied.\"\n              },\n              \"base64\": {\n                \"type\": \"string\",\n                \"contentEncoding\": \"base64\",\n                \"description\": \"File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size.\"\n              }\n            }\n          }\n        }\n      }\n    },\n    \"output_schema\": {\n      \"type\": \"object\",\n      \"required\": [\n        \"tool\",\n        \"result\"\n      ],\n      \"properties\": {\n        \"tool\": {\n          \"type\": \"string\"\n        },\n        \"result\": {\n          \"type\": \"object\",\n          \"required\": [\n            \"text\",\n            \"files\"\n          ],\n          \"properties\": {\n            \"text\": {\n              \"type\": [\n                \"string\",\n                \"null\"\n              ]\n            },\n            \"data\": {\n              \"description\": \"Parsed JSON when the textual result is JSON.\"\n            },\n            \"name\": {\n              \"type\": \"string\"\n            },\n            \"mime\": {\n              \"type\": \"string\"\n            },\n            \"files\": {\n              \"type\": \"array\",\n              \"items\": {\n                \"type\": \"object\",\n                \"required\": [\n                  \"name\",\n                  \"mime\",\n                  \"bytes\",\n                  \"base64\"\n                ],\n                \"properties\": {\n                  \"name\": {\n                    \"type\": \"string\"\n                  },\n                  \"mime\": {\n                    \"type\": \"string\"\n                  },\n                  \"bytes\": {\n                    \"type\": \"integer\"\n                  },\n                  \"base64\": {\n                    \"type\": \"string\",\n                    \"contentEncoding\": \"base64\"\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    },\n    \"processing\": \"Server; same transformation code as browser tools\",\n    \"limits\": {\n      \"request_bytes\": 8388608,\n      \"input_characters\": 1000000,\n      \"files_bytes\": 5242880,\n      \"max_files\": 1,\n      \"timeout_seconds\": 12\n    }\n  },\n  \"agent_processing\": \"Server; same transformation code as browser tools\",\n  \"browser_agent\": {\n    \"supported\": true,\n    \"name\": \"run_current_tool\",\n    \"discovery\": \"WebMCP on the human page in a supporting browser\",\n    \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n  }\n}\n```\n\n## Page guide\n\nOpen an Excel or OpenDocument worksheet as a readable table.\n\n## Useful next steps\n\n- [Compare CSV](https://happytails.ai/en/spreadsheet-tools/compare-csv/): Keyed row diff versus position diff. ([Markdown](https://happytails.ai/en/spreadsheet-tools/compare-csv.md))\n\n- [Merge CSV](https://happytails.ai/en/spreadsheet-tools/merge-csv/): Append with header alignment. ([Markdown](https://happytails.ai/en/spreadsheet-tools/merge-csv.md))\n\n- [CSV join](https://happytails.ai/en/spreadsheet-tools/csv-join/): Inner/left/full joins on explicit keys. ([Markdown](https://happytails.ai/en/spreadsheet-tools/csv-join.md))\n\n## How to use XLSX viewer\n\n1. Choose a file in XLSX, XLS or ODS.\n2. Review the settings, then choose Run XLSX viewer.\n3. Review the result, then use Copy result or a download link when available.\n\n## What to expect\n\nOpen an Excel or OpenDocument worksheet as a readable table. Search across all rows and columns, then use Previous rows and Next rows to browse 50 rows at a time. Wide tables have column navigation. Click a column heading to sort. Search and sort change the preview only; copy and download retain all data in the original order. Stored spreadsheet values are shown; formulas are not recalculated.\n"
}