Data destination

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Governed Data Marts from your warehouse, inside Microsoft Excel

The OWOX Data Marts add-in lets finance and operations teams browse published Data Marts, build a report and refresh it in the workbook they already use.

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Available connectors to Microsoft Excel

Available connectors to Microsoft Excel

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Data Partner You Can Trust

users

176K1

Executives and data analysts across 20+ industries

G2 rating

4.9★2

“A trusted data analytics partner” — verified review

npm installs

165K3

In Open Source We Trust

Customers

How it works

R01 · Destination

What Does Microsoft Excel Mean in OWOX Data Marts?

Excel is the destination for teams whose reporting lives in workbooks, not in a BI tool. The OWOX Data Marts add-in works inside the workbook. You sign in, browse the published Data Marts, build a report and refresh it there.

  • Every number comes from a Data Mart your analysts defined, not from a formula pasted into a workbook
  • The report is bound to a worksheet, so the data stays in the place people already work
  • The same Data Mart can also feed Google Sheets, Data Studio and AI assistants

R02 · Who it is for

Who Is Excel With OWOX For?

Finance and operations teams who report in Excel and need the numbers to be correct, explainable and defensible.

  • Teams that rebuild the same export every week
  • Analysts tired of being asked where a number came from
  • Anyone who needs a refreshable report instead of a pasted CSV

R03 · Report

How a Report Gets Into a Worksheet

Excel works in pull mode. The add-in asks OWOX for the data when you refresh the report, and OWOX reads your storage.

  1. Sign in through the add-in.
  2. Select a published Data Mart.
  3. Set the columns, filters and sort order.
  4. Select Create & Run to fill the worksheet. The add-in binds the report to that worksheet.

A refresh rewrites only the imported columns. Columns and formulas you added to the right of them stay, the column order stays and the formats on imported columns survive.

R04 · Destination

What to Know Before You Start

  1. The Microsoft account in Excel must use the same email as your OWOX profile.
  2. The add-in runs in Excel on the web, in Microsoft 365 on Windows and Mac, and in Excel 2019 or later on Mac.
  3. You install it from the Office Add-ins store in Excel, or an administrator deploys it from the Microsoft 365 admin center.
  4. There is no scheduled refresh. You refresh manually while the workbook is open.
  5. A worksheet holds one report, and Excel’s own limit of about 1,048,576 rows applies.
  6. What a user can load depends on their OWOX access.

The Microsoft Excel setup guide has the details.

S02 · Why teams pick OWOX

Why OWOX as a Companion to Excel

Traceable numbers

Every number comes from a Data Mart defined by your analysts, and the SQL behind it is visible.

Defined once

Analysts define metrics once. Business teams load them in Excel without rebuilding the logic.

One source of truth

The same Data Mart feeds Excel, Google Sheets and AI assistants, so the number matches across them.

Your data stays in your warehouse

OWOX does not keep a copy. The workbook shows what your storage returns when you refresh.

Your layout survives

Refreshes touch only imported columns, so your own columns and formulas stay put.

Less rework

Users change filters and columns in the add-in instead of asking for a new export.

What users are saying

Not testimonials. Comment threads.

Real things real customers said — each quote pinned to a specific claim, straight from the quotes database.

A3re: trusting AI
Nodari RizunNodari RizunFounder & CEO, Pürblack®
“AI, by the nature of the models, will hallucinate. And because of that, you need something which will create guardrails to ensure that there are no hallucinations, that you can trust your data.”
C9re: one source of truth
Mark SimmonsMark SimmonsCMO, Pürblack®
“We had six or seven different channels and no single source of truth — it was almost impossible, a lot of guesswork.”
E7re: getting time back
Nodari RizunNodari RizunFounder & CEO, Pürblack®
“We regained time. And time is the one resource that never comes back.”

Bring governed data into your workbooks

Connect your warehouse, publish a Data Mart and open it in Excel.

Get started free

References

  1. Internal OWOX data as of 2026-10-02
  2. G2 reviews of OWOX
  3. npm installs stat