Learning packageSAVE ON A PACKAGE
5 live lessons, one structured learning plan. Save €27 compared with individual lesson prices.
- Excel: data entry & clean structure
- Excel: tables & structured references
€78 / person
Save €27 vs. individual lessons
PRACTICAL HELP. WITHOUT THE GUESSWORK.
Learn a skill
Live one-to-one Excel, SQL and data training, built around practical work.
43 offers
Learning packageSAVE ON A PACKAGE
3 live lessons, one structured learning plan. Save €20 compared with individual lesson prices.
- SQL: SELECT, filtering & sorting
- SQL: joins & table relationships
€57 / person
Save €20 vs. individual lessons
TrainingMULTI-BUY ELIGIBLE
Learn to diagnose the spreadsheet bottleneck. Practise with Martin in a live online lesson.
- One 90-minute live session
- A practice workbook built during the session
€39 / person
TrainingMULTI-BUY ELIGIBLE
Learn to turn a question into a query plan. Practise with Martin in a live online lesson.
- Two-hour live working session
- Practice queries and a small sample dataset
€49 / person
TrainingMULTI-BUY ELIGIBLE
Learn to shape a sensible data model. Practise with Martin in a live online lesson.
- Two-hour live workshop
- A practice dashboard created together
€59 / person
TrainingMULTI-BUY ELIGIBLE
Learn to separate plausibility from correctness. Practise with Martin in a live online lesson.
- One 90-minute live session
- An evaluation rubric worked through together
€49 / person
TrainingMULTI-BUY ELIGIBLE
Learn to organise rows, columns, and data types. Practise with Martin in a live online lesson.
- 60-minute one-to-one online lesson
- Practice examples created during the lesson
€19 / person
TrainingMULTI-BUY ELIGIBLE
Learn to convert ranges into structured tables. Practise with Martin in a live online lesson.
- 60-minute one-to-one online lesson
- Practice examples created during the lesson
€19 / person
TrainingMULTI-BUY ELIGIBLE
Learn to apply consistent number formats and styles. Practise with Martin in a live online lesson.
- 60-minute one-to-one online lesson
- Practice examples created during the lesson
€19 / person
TrainingMULTI-BUY ELIGIBLE
Learn to understand operators and calculation order. Practise with Martin in a live online lesson.
- 60-minute one-to-one online lesson
- Practice examples created during the lesson
€19 / person
TrainingMULTI-BUY ELIGIBLE
Learn to work with logical, date, and text functions. Practise with Martin in a live online lesson.
- 75-minute one-to-one online lesson
- Practice examples created during the lesson
€29 / person
TrainingMULTI-BUY ELIGIBLE
Learn to compare XLOOKUP and INDEX/MATCH. Practise with Martin in a live online lesson.
- 90-minute one-to-one online lesson
- Practice examples created during the lesson
€29 / person
A REAL PERSON BEHIND EVERY PROJECT
Hi, I’m Martin.
I connect the dots.
I’m a freelance data consultant and Excel expert with more than 16 years of experience across engineering, data, and business. I build practical tools and solve reporting problems, drawing on operational analytics at Bankers Petroleum Albania and AI evaluation and human data management at micro1.
I hold a Master’s in Petroleum Engineering and am pursuing a PhD. My approach is practical: understand the system, question the assumptions, and build something useful.
Get to know Martin martin.dudumi@gmail.comGOOD THINGS WORK BETTER TOGETHER
Choose more.
Spend less.
Mix individual lessons, toolkits, and non-app services. Your bag calculates the saving automatically.
App builds and learning packages are excluded. Packages have their own savings. Each different offer counts once. For services marked “from”, the discount applies to the starting budget until the final quote is agreed.
TRY A PRACTICAL LEARNING PACK
3 lessons. One smarter investment.
data entry & clean structureformula foundationspivot tables & pivot charts
Individual total€67
Your pack price€56.95
You save €10.05 · 15% off
Already selected a learning package? The bag will flag any overlapping lessons.ONE GOOD NEXT STEP