By Mohamed Bah · Kolonell, a digital agency in Dakar

Practical Excel: tables, formulas and analysis for work

The workbook that tracks your sales, your stock and your budget, and answers your manager's question in thirty seconds

75,000 FCFA · 115 €

  • 14 h of training
  • Verifiable certificate
  • Wave or Orange Money
  • Online, at your own pace
I have a question (WhatsApp)
Quick enrolment in 30 s: invoice by email
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Programme

  1. 1Building a clean table
  2. 2The essential formulas
  3. 3Logical and lookup functions
  4. 4Sorting, filtering and making data speak
  5. 5PivotTables and charts

and 1 more module

Wave / Orange Money payment, access within 24 business hours

Possible earnings

Excel often makes the difference when you apply for a job or a promotion: in Dakar, an assistant or manager who is comfortable with PivotTables and XLOOKUP typically earns between 180,000 and 350,000 FCFA (about $300 to $580) gross per month depending on the sector, close to the average formal-sector salary in Dakar (280,000 to 350,000 FCFA, about $470 to $580, in 2026). As a freelancer, building a custom management workbook for a shop or an SME is commonly billed at 30,000 to 150,000 FCFA (about $50 to $250) (rates observed in 2026; no income is guaranteed).

Indicative estimate, depending on your market, pace and work. No income is guaranteed.

Your instructor

Mohamed Bah

Founder of Kolonell, a digital agency in Dakar. A former chief technology officer, he has trained administrative and sales teams on office software and built business applications for SMEs in Senegal, Côte d'Ivoire and Dubai.

See Kolonell’s work →

Questions about this course

Excel or Google Sheets?

Both. The lessons are written for Excel and every significant difference with Google Sheets is pointed out. Google Sheets is free and is enough for 90% of the exercises.

I'm bad at math. Will I be able to follow?

Yes. The course only requires addition, multiplication and percentages. Every formula is explained on a concrete case in FCFA before it is generalized.

My version of Excel doesn't have XLOOKUP. What should I do?

The lesson also covers VLOOKUP and the INDEX MATCH combination, which work in every version since Excel 2010 and in Google Sheets.

How much time should I plan for?

About 14 hours: nearly 8 hours of lessons, the exercises after each lesson and two projects (one hour for the pricing sheet, two and a half hours for the final workbook). At three sessions a week, allow four to five weeks.

Can I use my own files?

It is recommended. Every practical exercise can be done on your real data or on the fictional files provided, as long as you do not share any customer's personal data.

What should I do after this level?

Level 4, Complete Office suite, to make Word, Excel and PowerPoint work together and produce presentations for senior management.

How do I pay?

Via Wave or Orange Money. After enrolling you receive a pro forma invoice by email with the number to pay. Send the proof on WhatsApp: your access is activated within 24 business hours.

How long do I keep access?

For life, updates included. Learn at your own pace and revisit lessons as often as you need.

How do I get the certificate?

Complete the lessons, pass each module quiz with at least 70% and submit your final project: an instructor reviews and approves it (feedback within 5 working days). The certificate is then generated, with a unique number and a public verification page.

What you will be able to do

  • Designing structured data tables in Excel and Google Sheets
  • Excel formulas and functions: SUM, IF, COUNTIF, SUMIFS, XLOOKUP, absolute references
  • Sorting, filtering, data validation and conditional formatting
  • Data analysis with PivotTables and charts
  • Building management tools: sales tracking, stock, budget, invoicing
  • Making workbooks reliable, protecting and sharing them

What you will produce

  • Your structured sales log with drop-down lists and data entry checks
  • Your stock sheet with stock-out alerts in color
  • Your pricing sheet with margin, discount and 18% VAT
  • Your monthly analysis with a PivotTable and two annotated charts
  • Your invoice template that fills in the price and the customer automatically
  • Your monthly budget, planned versus actual, with variances
  • The final project: a complete management workbook, protected and ready to share

Tools used

  • Microsoft Excel (Microsoft 365)
  • Excel for the web
  • Google Sheets
  • OneDrive
  • Google Drive

What you'll learn

  • Build a clean, reliable data table: one row per record, FCFA and date formats, structured table
  • Write the essential formulas without errors, using relative and absolute references, percentages and VAT calculations
  • Automate decisions and lookups with IF, COUNTIF, SUMIFS and XLOOKUP
  • Sort, filter, control data entry with drop-down lists and flag anomalies with conditional formatting
  • Summarize data with a PivotTable and present it in a readable chart
  • Assemble reusable management tools: sales log, stock sheet, monthly budget, invoice template
  • Print, protect and share a workbook, including in Google Sheets

Prerequisites

  • Levels 1 and 2 of the track recommended, or equivalent comfort with a computer, files and a word processor
  • Microsoft Excel 2021 or later, or Microsoft 365 (for XLOOKUP), or Google Sheets, which is free; LibreOffice Calc 24.8 or later also works
  • Being able to do an addition, a multiplication and a percentage on a calculator

About this course

The cash count never balances, the stock on screen does not match the storeroom, and every month you redo the totals on a calculator. This course is for assistants, junior accountants, stock managers, sales staff, shop managers, NGO officers and entrepreneurs who keep track of numbers. It turns your digital notebooks into reliable workbooks that calculate on their own and answer your manager's question in thirty seconds.

You first learn to build a clean table, then the essential formulas, absolute references, percentages and 18% VAT. Next come the functions that decide and look things up for you (IF, COUNTIF, SUMIFS, XLOOKUP), along with sorting, filters, drop-down lists and conditional formatting. You finish with PivotTables, charts and ready-to-use management tools, in Excel as well as Google Sheets.

Expect 14 hours, 6 modules, 30 lessons and 72 exercises, all built on local cases in FCFA: a shop in Thiès, a pharmacy in Bamako, a wholesaler in Cotonou. Two projects graded against a rubric have you build real tools: an automated pricing and sales workbook, then the complete management workbook of an SME. A Kolonell certificate, verifiable online, is included.

By the end, you have a controlled sales log, a stock sheet with stock-out alerts, an invoice template that finds the price and the customer by itself, a planned versus actual budget and a PivotTable analysis. In Dakar, an assistant or manager comfortable with PivotTables and XLOOKUP typically earns between 180,000 and 350,000 FCFA gross per month depending on the sector; as a freelancer, a custom management workbook is commonly billed at 30,000 to 150,000 FCFA (rates observed in 2026; no income is guaranteed).

Level 3 of 5 in the Office and productivity track: it builds on Professional Word and prepares level 4, Complete Office suite, where Word, Excel and PowerPoint work together.

Who it is for: Administrative assistants, junior accountants, stock managers, sales staff, shop managers, NGO officers and entrepreneurs who keep track of numbers (sales, cash, stock, budget, payroll) and want to move from a notebook or a calculator to a reliable workbook.

Curriculum

A module-by-module path: lessons, exercises, quizzes and projects to submit.

  1. Module 1· 12 exercises

    Building a clean table

    Enter clean data from the start, so that every calculation and every analysis that follows is correct.

    • Workbooks, sheets, cells: finding your way and moving fast in ExcelFree preview15 min
    • One row per record: the rules of a reliable data tableFree preview18 min
    • Number formats, FCFA, dates and percentages: display without distortingFree preview15 min
    • Format as Table, Freeze Panes and naming your sheetsFree preview15 min
    • Module handout (PDF)Free preview5 min
    • Quiz: a clean tableModule quiz
  2. Module 2· 12 exercises

    The essential formulas

    Calculate totals, averages, margins and VAT without ever retyping a result by hand.

    • Writing a formula: operators, order of operations and copying down18 min
    • SUM, AVERAGE, MIN, MAX, COUNT: the everyday functions18 min
    • Relative and absolute references: the $ sign finally explained20 min
    • Percentages, margins, discounts and 18% VAT on a real price list20 min
    • Module handout (PDF)5 min
    • Quiz: essential formulasModule quiz
  3. Module 3· 12 exercises

    Logical and lookup functions

    Let Excel make decisions for you and find information in a list with a single formula.

    • IF and IFS: letting Excel make decisions20 min
    • COUNTIF, SUMIFS, AVERAGEIF: counting and adding up by criteria20 min
    • XLOOKUP, VLOOKUP and INDEX MATCH: finding a price, a customer, a stock level22 min
    • Spotting and fixing errors: #N/A, #VALUE!, #DIV/0!, #REF!15 min
    • Module handout (PDF)5 min
    • Quiz: logical and lookup functionsModule quiz
    • Your automated pricing and sales workbookProject to submit
  4. Module 4· 12 exercises

    Sorting, filtering and making data speak

    Control data entry, find the information that matters and see at a glance what is going wrong.

    • Sort and filter: answering your manager's question in thirty seconds15 min
    • Conditional formatting: stock-outs, delays and top sellers in color18 min
    • Data validation and drop-down lists: preventing data entry errors18 min
    • Removing duplicates, converting, splitting and cleaning imported data18 min
    • Module handout (PDF)5 min
    • Quiz: sort, filter and formatModule quiz
  5. Module 5· 12 exercises

    PivotTables and charts

    Summarize thousands of rows and present a trend in a chart that everyone understands.

    • Your first PivotTable in five clicks20 min
    • Grouping by month, filtering with slicers and calculating percentages in a PivotTable20 min
    • Choosing the right chart: bars, lines, pies, and the mistakes to avoid18 min
    • A mini dashboard on a single sheet18 min
    • Module handout (PDF)5 min
    • Quiz: PivotTables and chartsModule quiz
  6. Module 6· 12 exercises

    Ready-to-use management tools

    Assemble the Excel tools a shop or an SME uses every day, then print, protect and share them.

    • Sales journal and cash tracking for Wave, Orange Money and cash20 min
    • Stock sheet: stock in, stock out, expected stock and reorder point20 min
    • Invoice template and monthly budget, planned versus actual20 min
    • Printing, protecting and sharing a workbook, Google Sheets included15 min
    • Module handout (PDF)5 min
    • Quiz: business management toolsModule quiz
    • Final project: the management workbook of an SMECapstone
  7. Certificate included

Your certificate at the end

A numbered certificate with your validated skills, a public page and a verification QR code. Add it to LinkedIn in one click.

Kolonell Academy
Verified by Kolonell Academy

Certificate of skills

Your name

has completed and validated the course

Practical Excel: tables, formulas and analysis for work

Skills developed

  • Designing structured data tables in Excel and Google Sheets
  • Excel formulas and functions: SUM, IF, COUNTIF, SUMIFS, XLOOKUP, absolute references
  • Sorting, filtering, data validation and conditional formatting
  • Data analysis with PivotTables and charts
  • Building management tools: sales tracking, stock, budget, invoicing
  • Making workbooks reliable, protecting and sharing them

Number KOL-CERT-2026-XXXXX

Mohamed Bah

Founder, Kolonell Academy

After the course

What you get once the course is complete

A verifiable certificate

Each certificate has a number anyone can verify online, and you can add it to your LinkedIn profile in one click.

Your CV reviewed and improved

Upload your CV from your profile: our team reviews it and helps you make it clearer and more convincing.

Access to the talent pool

Learners who complete the course can join the Kolonell talent pool. Entry is earned: course completed, exercises submitted. Kolonell also draws on it for its own hiring.

Optional services, free for learners. This is not a promise of employment.

Poster for Practical Excel: tables, formulas and analysis for work

Course poster

Download the poster to print it, send it to your employer or share it with colleagues. The full programme details every module.

This course is part of the track

Bureautique et productivité

Level 3 of 5 · Advanced

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
See the 5 track levels

Next level · 4/5 Career

Complete Office suite: Word, Excel and PowerPoint at work

The full job, with a portfolio

The complete monthly pack, Word report, Excel workbook and PowerPoint presentation, produced in half a day instead of three days

100,000 FCFA 22 h

View the next level

Our commitments

75,000 FCFA · 115 €

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