Connector

Pull Open Holidays data into Microsoft Excel

Explaining a sales dip by "it was a holiday" belongs in a column, not in a comment. Load Open Holidays into your data warehouse, flag orders and traffic by date, and pull the Data Mart into Excel.

Open HolidaysConnectedPublic Holidays
Data MartPublishedone definition
Microsoft ExcelDateIdNameDaily 09:00
Refreshed on a schedule. No exports, no copy-paste.

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Hand this to your AI

In the Microsoft Excel workbook, "it was a holiday" is a comment, not a column anyone can filter.

Paste this into your AI assistant. It loads Open Holidays into your data warehouse, flags orders and traffic by date, and pulls that Data Mart into Microsoft Excel through the add-in.

The prompt

give me a Microsoft Excel workbook of daily orders and traffic with an Open Holidays column for each country, so I can filter holiday days out of the trend

Endpoints

Open Holidays Endpoints

Documentation

1 Open Holidays endpoints you can import. Each lands in its own table in your data warehouse.

S00 · Why

Why Open Holidays does not go straight to Excel

A holiday list can be typed into Excel, but not reliably, at scale or business-ready. Regional holidays differ by country, and a typed list is out of date next year. The data warehouse holds the calendar and joins it to orders and traffic first.

  • Open Holidays publishes the calendar, not its effect on sales
  • The data analyst joins holidays to orders and traffic by date and country
  • The workbook separates a holiday dip from a real one
Open HolidaysHoliday calendar
Microsoft Exc…
No link to sales
Data warehouseJoined by id
OrdersOrders by day
Web analyticsTraffic by day

S01 · Step 1

Step 1: Load Open Holidays into your data warehouse first

Create a Data Mart with Open Holidays as the data source and choose where the data lands. Any popular data warehouse works.

  • One endpoint, Public Holidays, with seven fields, in one table
  • Pick a country ISO code and a language for holiday names
  • Open the Open Holidays connector for your data warehouse below
Open Holida…Data Mart
Your data warehouseGoogle BigQueryAWS AthenaSnowflakeAWS RedshiftDatabricks
open_holidays.public_holidays

S03 · Step 3

Step 3: Pull Open Holidays data into Excel with the add-in

In Excel, add the OWOX Data Marts add-in and sign in. Choose the published Open Holidays Data Mart (Public Holidays), tick the columns you want and press Create & Run.

  • Tick date, name, nationwide and type
  • The workbook reads your data warehouse, not the holidays API
OWOX add-inSigned inPublic HolidaysdatenamenationwideCreate & Run
Microsoft ExcelYour columns staydatenamenationwide

S04 · Step 4

Step 4: Refresh the Open Holidays workbook when you need it

Refresh when you plan the next year. The imported dates update; the lift column you added keeps comparing holidays with other days.

  • Your own holiday-lift formula survives
  • Refresh is a click, with no job to run
OWOX add-inPublic HolidaysRefreshPull only
Microsoft ExcelYour column staysdatenamenationwideYours

S05 · Step 5

Step 5: Reuse Open Holidays inside OWOX MCP

The holiday Data Mart also works in OWOX MCP, your AI assistant for data. Request any report, chat with it, then get it in Google Sheets or Excel in one click.

  • Ask how orders behave on holidays and other days
  • Chat and workbook share orders_count
OWOX MCPSplit orders_count by holiday and ordinary dayorders_count
Google SheetsOpen
ExcelOpen

Recent updates

Why OWOX

Why OWOX for Open Holidays in Excel

A typed calendar tab marks dates in Excel. OWOX makes the calendar a table that joins to your numbers.

  • The calendar next to the numbers. Holidays join orders and traffic by date in your data warehouse.
  • Nationwide or regional. The nationwide and type fields separate a public day from a local one.
  • Your columns stay. A refresh updates what the add-in imported and nothing around it.
  • Maintained for you. No list to retype when the year turns.

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