Orion-Sigma

Orion-Sigma Consulting · Paris

Orion-Sigma, your data partner

Clean, well-structured data is what makes a software project succeed.

We structure your data — databases, analysis, Power BI — and we build our own tools for the work that comes back every week: StyleCleaner for your Word documents, Redirect Doctor for your WordPress site.

DATABASE POWER QUERY EXCEL POWER BI VBA AI DATA ANALYSIS ORION

01 · The expertise

Laying the foundations of your data

A software project is like building a house: before you can live in it, you have to lay the foundations.

Everyone wants a system that gives them fast, accurate figures to steer their business. But, exactly as when building a house, there are intermediate stages you cannot skip before the project can be handed over.

Structuring the data properly from the very start is what every successful project rests on.

That is where our expertise comes in.

Read more
The foundations of a house

02 · The path of your data

From your Excel files to the dashboard

Four stages, in this order. You can join at any one of them: what changes is that we also understand the ones before and the ones after.

  1. 01 · Excel and existing data
  2. 02 · Structuring and migration
  3. 03 · Data analysis
  4. 04 · Power BI

01 · Understand

Excel and existing data

Your data is already there, spread across dozens of files. We start by understanding what is really in it: what each column holds, and how it gets filled in.

This is not Excel training. It is a way into your own data.

Microsoft Excel

02 · Structure

Structuring and migration

Understand, clean, harmonize, model, then migrate. A database is not a large Excel file with several sheets in it.

This is the heart of the job: turning a system that grew over the years into a structure that lasts.

03 · Analyze

Data analysis

Consolidate, reconcile, measure, compare. Answering precise business questions, rather than producing one more chart.

And if a figure looks wrong, we trace it back to the Excel file it came from.

04 · Present

Power BI

Reports, dashboards, shared indicators. The end of the path, never its starting point.

Power BI does not repair disorganized data. It puts it on display.

Microsoft Power BI

03 · Two services of their own

They are not stages of the path

One starts from data that is already structured, the other from an Excel tool that needs taking over. Both draw on the same knowledge of the whole chain.

Standalone service

Power BI training

Your data is already structured and you want your teams to work with it on their own. The training starts from your files, not from a demo dataset.

It goes further than clicking around in Power BI: it also explains how the data underneath is put together.

Excel speciality

Excel and VBA migration

A workbook packed with macros runs a whole part of your business, and only one person still knows how to fix it.

Understanding what exists before transforming it: the same approach, applied to a tool.

Get in touch

Tell me what you are trying to achieve

One message is enough to start. We look together at whether what you need is training, a project, or simply a database put back on its feet — and a quote follows if there is something to quote for.

Write to Orion-Sigma

04 · The software

Two chores, settled once and for all

Both were born in the same place: in front of a repetitive job that had to be done by hand, dozens of times, without ever getting one wrong.

Microsoft Word add-inMicrosoft Marketplace
StyleCleaner open inside Word: the pane sits in the right-hand column, next to the document, suggesting a style for every block it found

StyleCleaner

A messy document becomes a properly styled one, in one click.

StyleCleaner reads the typography of your document, works out what each paragraph is meant to be, then applies real Word styles — to the whole file, not just the first two pages.

  • Real Word styles applied across the entire document
  • The Designer: your own house style — fonts, heading colors, numbering
  • Seven clean-up tools, including the one that removes those ghost horizontal lines
  • One license, two computers

€29.99 / yearor €4.99 for 30 days

See StyleCleaner
WordPress pluginWordPress.org
Redirect Doctor inside the WordPress admin: the tiles count 25 linked redirects, 3 loops and 1,605 404 errors, and the screen lists the rules that have been unused for years

Redirect Doctor

A hundred addresses fixed at once, without a single mistake.

Redirect Doctor inspects every redirect on your site: the chains, the loops, the rules nobody has travelled through in years, and the links on your own pages that still point at an old address.

  • Finds redirect chains, loops and dead rules
  • Finds internal links that still travel through a redirect
  • A clear report you can hand straight to your client
  • Full free version, published on WordPress.org

FreePro version from €19.99 a year

See Redirect Doctor

05 · The company

Behind Orion-Sigma

Frédéric Le Guen runs the projects and writes the software. ex-Microsoft MVP for Excel · 2010–2025

Fifteen years spent explaining Excel, Power Query and Power BI to people whose job it is not. What comes up most often is never a question about the tool: it is data that was badly organized at the start, and no chart will make up for it afterwards.

So Orion-Sigma Consulting works in this order: structure first, then analysis, then training for the people who will live with it.

  • 2.3 Mvisitors a year on excel-exercice.com
  • 15 yearsrecognized by Microsoft, from 2010 to 2025
  • 460+articles and tutorials published

A registered company, not a nickname

Orion-Sigma Consulting, registered in France. Company no. 922 673 223 · VAT FR36922673223.

Tax included, invoice included

On the software, the price you see is the price you pay: the invoice is issued automatically, with the VAT rate of your own country.

One person answers

On a consulting project as on a piece of software, the same person replies.