Excel Online

OpenTabs plugin for Microsoft Excel Online — gives AI agents access to Excel Online through your authenticated browser session.

Install

opentabs plugin install excel-online

Or install globally via npm:

npm install -g @opentabs-dev/opentabs-plugin-excel-online

Setup

1. Open excel.cloud.microsoft in Chrome and log in
2. Open the OpenTabs side panel — the Excel Online plugin should appear as ready

Tools (28)

Account (1)

| Tool | Description | Type | |---|---|---| | get_current_user | Get the authenticated user profile | Read |

Workbook (5)

| Tool | Description | Type | |---|---|---| | get_workbook_info | Get current workbook metadata | Read | | calculate_workbook | Recalculate all formulas | Write | | evaluate_formula | Evaluate a formula and return the result | Write | | list_named_items | List named ranges and constants | Read | | add_named_item | Create a named range or constant | Write |

Worksheets (4)

| Tool | Description | Type | |---|---|---| | list_worksheets | List all worksheets in the workbook | Read | | add_worksheet | Add a new worksheet | Write | | update_worksheet | Update worksheet name, position, or visibility | Write | | delete_worksheet | Delete a worksheet by name | Write |

Ranges (7)

| Tool | Description | Type | |---|---|---| | get_range | Read cell values from a range | Read | | get_used_range | Get the used range of a worksheet | Read | | update_range | Write values or formulas to a range | Write | | clear_range | Clear cell contents or formatting | Write | | insert_range | Insert cells and shift existing data | Write | | delete_range | Delete cells and shift remaining data | Write | | sort_range | Sort data in a range by columns | Write |

Tables (8)

| Tool | Description | Type | |---|---|---| | list_tables | List all tables in the workbook | Read | | create_table | Create a table from a data range | Write | | delete_table | Delete a table | Write | | get_table_rows | Get all rows from a table | Read | | get_table_columns | Get column definitions of a table | Read | | add_table_row | Add rows to a table | Write | | delete_table_row | Delete a row from a table by index | Write | | add_table_column | Add a column to a table | Write |

Charts (3)

| Tool | Description | Type | |---|---|---| | list_charts | List all charts in a worksheet | Read | | create_chart | Create a chart from data | Write | | delete_chart | Delete a chart | Write |

How It Works

This plugin runs inside your Excel Online tab through the OpenTabs Chrome extension. It uses your existing browser session — no API tokens or OAuth apps required. All operations happen as you, with your permissions.

License

MIT