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.
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.
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.
01 · Excel and existing data
02 · Structuring and migration
03 · Data analysis
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.
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.
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.
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
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
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
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.