The Power Query training teaches you how to prepare, clean and transform Excel data before any analysis. In one intensive half day, you discover data tables, importing from external sources and the good entry practices that save real time downstream. A pivotal skill for anyone doing regular data analysis or Excel reporting in French speaking Switzerland.
Working clean Excel data before analysis is a win on everything else
In Swiss companies, more time is often spent cleaning an Excel file than analyzing it. This Excel training concentrates on real world cases: structuring a table, importing external data cleanly, securing data entry, avoiding the classic pitfalls. You finish the course with reflexes immediately applicable to your own files and course materials to dig deeper.
Module 1: Data tables
Module 2: Importing and exporting data
Module 3: Data entry in a table
Any Excel data analysis starts with the same step: preparing the data. If the table is not structured, if imports are dirty, if data entry is not secured, downstream analysis is biased. The Power Query and Excel data preparation training gives you the methods to clear this hurdle in an intensive half day.
The stake is very concrete: most of the time spent on an Excel analysis file goes to preparation, not analysis itself. This training targets that exact moment to save you considerable time on all your future workbooks.
The training gives a central place to Excel data tables. A well structured table filters, sorts and updates automatically. You learn to turn a regular range into an Excel table, use structured references, and benefit from automatic features like range extension or formula propagation.
This structuring is the foundation of any analysis: pivot tables, charts, advanced formulas all work better on clean tables.
The training covers methods to import data into Excel from external sources: CSV files, text files, other Excel workbooks, databases. Each method has its pitfalls (encoding, separators, date formats) and the training explains how to avoid them.
You also see Excel export options to other formats, useful for transmitting clean data to a colleague or a third party system.
Power Query has become the reference tool for preparing data in Excel. Natively integrated into Excel for several versions, it lets you connect, transform and clean data without writing a single formula. The training covers Power Query in its role of preparing data for analysis.
To go much further on Power Query and modeling, the dedicated Excel Power Query course expands on this topic over a full day.
The Excel data preparation training is designed for management controllers, analysts, reporting managers, HR staff, self employed professionals and any Excel users who produce or consume analysis files. Regular Excel use and knowledge of basic functions are required.
At our ITTA centers in Carouge and Le Flon, this training runs as an intensive half day with an expert instructor and a small group to ensure personalized follow up. You work on real files, structure your own tables and leave with course materials to reproduce the steps at your desk.
What is an Excel data table?
It is an Excel range structured as a real table, with named headers, structured references and automatic features (filter, sort, extension). Any Excel data analysis should start from a table.
Is Power Query included in Excel?
Yes, Power Query is natively integrated into Excel since Excel 2016 and is available in all modern versions of Excel.
What is the difference between Power Query and Excel formulas?
Formulas transform cells in a sheet. Power Query builds a replayable transformation pipeline, useful for repetitive imports or complex cleanups.
Do I need to know Excel formulas for this training?
Regular Excel use is enough. The training focuses on data preparation, not advanced formulas.
How to import a CSV into Excel cleanly?
The training shows how to manage encoding, separators and date formats so a CSV import is clean from the first try.
Is this training held in Geneva or Lausanne?
Both. The training takes place in Carouge in Geneva, at Le Flon in Lausanne and in a virtual classroom.
What is the natural next step after this preparation training?
The Excel Analyze your Data course to move into analysis with pivot tables, or the Excel Dashboards course for visual reporting.
Analyst, controlling, BI, operations profiles wanting to master PowerQuery in Excel to prepare data before analysis. In Geneva and Lausanne, the course welcomes participants from international organizations, banking, consulting and growing SMEs. No specific prerequisite is required other than a concrete willingness to progress on the subject.
You leave with an operational mastery of the fundamentals, reusable canvases on your concrete cases, a structured action plan for the weeks that follow. Many participants report a visible effect from the first week back, with sustainable anchoring over four to six weeks of regular practice. The course combines short theory inputs, practical exercises on your real situations and personalized trainer debrief.
An analyst automatically consolidating 30 monthly files into clean dataset. A controller connecting Excel to database and refreshing analyses in click. An operational person transforming web data into exploitable dataset. The course adapts exercises to your context with personalized trainer feedback, and each participant leaves with an action plan calibrated to their own situation.
Combines well with Excel Pivot tables for analysis, Excel Dashboards for reporting, M language to go further. Many participants enroll in one of these courses in the following trimester, according to their current priority and professional context.
PowerQuery transformed Excel into a data preparation platform. 200+ source connections, 300+ transformation operations, automation: capabilities rivaling specialized ETL. This training targets profiles wanting to professionalize data preparation.
Most participants report a noticeable effect from the first week of return, with deeper anchoring over four to six weeks of regular practice on real files. The course closes with a personalized practice plan calibrated on your professional context.
The features covered are used daily by millions of professionals across Geneva and Lausanne organizations. Mastery transforms repetitive work into efficient routine. This training relies on real cases and offers an outfitted approach calibrated for the 2025-2026 evolutions of the platform.
At ITTA centers in Geneva and Lausanne, this course runs in a small group with an expert trainer and a format alternating concise theory, practical exercises and personalized debrief. Group confidentiality is explicit and held. Each participant arrives with a real case and leaves with an action plan calibrated to their context. The course integrates recent evolutions of the domain (digital tools, hybrid formats, 2025-2026 practices) without losing focus on fundamentals.
Does PowerQuery replace Power BI?
No, complementary. PowerQuery prepares, Power BI visualizes.
Need to know M?
No, graphical interface covers 80% of cases.
Suitable for beginners?
Yes, the course lays PowerQuery fundamentals.
Where do sessions take place?
ITTA has three centers in French speaking Switzerland: in Geneva (Carouge, Route des Jeunes 35), in Lausanne at the Flon (Rue des Cotes de Montbenon 16) and at Lausanne Mon-Repos (Avenue de Mon-repos 24). The training is also available in virtual classroom.
Monday to Friday
8:30 AM to 6:00 PM
Tel. 058 307 73 00
ITTA
Route des jeunes 35
1227 Carouge, Suisse
Monday to Friday, from 8:30 am to 06:00 pm.
