DMILZE EdTech · Practice data
Practice data
Free files for DMILZE EdTech learners. Download what your tutor names in class, or explore the open dataset library for your own projects.
111 files18 coursesFree to download
Data Analysis: Eko Fresh Mart
VIEW THE COURSE →Eko Fresh Mart is a fictional supermarket chain with four Lagos branches (Yaba, Lekki, Ikeja, Surulere). Every name and number is invented for practice. Prices are in naira, year 2025.
File
What it is
Weeks
Size
Everything in one zip
ZIPEkoFresh_Practice_Data_All.zip
All the files below, in the right folders
Weeks · All
2.7 MB
Messy sales export
XLSXEkoFresh_Sales_Messy_Q1_2025.xlsx
A raw till export, January to March, full of real-world problems to clean
Weeks · 1, 2
325 KB
Clean sales workbook
XLSXEkoFresh_Sales_Clean_2025.xlsx
Full-year sales plus Products, Branches and Customers sheets
Weeks · 1, 2, 3, 7
1.7 MB
SQL database
DBekofresh.db
Five tables in SQLite. Open with DB Browser for SQLite (free)
Weeks · 4, 5
1.1 MB
SQL tables as CSV
ZIPEkoFresh_SQL_CSV_files.zip
The same five tables, for PostgreSQL users
Weeks · 4, 5
268 KB
Monthly files, January to June
ZIPEkoFresh_Monthly_Files_Jan-Jun.zip
Six monthly CSV exports for Power Query. Unzip into one folder
Weeks · 6
89 KB
July file
CSVEkoFresh_07_July_2025.csv
Held back: add it to the folder during class, then refresh
Weeks · 6
213 KB
AI and AI Tools: practice files
VIEW THE COURSE →Templates and fictional Eko Fresh Mart documents for the AI and AI Tools course. Everything here is invented, so it is safe to upload to ChatGPT, Claude, Gemini or any other AI tool.
File
What it is
Weeks
Size
Weekly task audit
XLSXWeekly_Task_Audit_Template.xlsx
List ten tasks you do every week and the hours they take, then measure what AI saves
Weeks · 1, 4
6 KB
Prompt library template
XLSXPrompt_Library_Template.xlsx
Ten rows for tested prompts: role, context, task, format and results
Weeks · 1, 4
6 KB
Eko Fresh annual review
PDFEko_Fresh_Annual_Review_2025.pdf
A 5 page company report to summarise and fact check
Weeks · 2
9 KB
Messy meeting notes
TXTEko_Fresh_Managers_Meeting_Notes.txt
Rough notes to turn into actions, a follow-up email and a customer notice
Weeks · 2, 4
2 KB
Branch by month summary
XLSXEkoFresh_Branch_by_Month_2025.xlsx
48 rows of sales, profit and online share: small enough for any free chatbot
Weeks · 3
8 KB
Prompt Engineering Mastery: practice files
VIEW THE COURSE →Practice files for Prompt Engineering Mastery. The course also uses the Eko Fresh files in the AI and AI Tools section above. Everything is fictional, so it is safe to upload to any AI tool.
File
What it is
Weeks
Size
Weak prompts pack
TXTWeak_Prompts_Pack.txt
Ten prompts that give weak answers, ready to rewrite
Weeks · 1, 2
873 B
Eko Fresh brand brief
PDFEko_Fresh_Brand_Brief.pdf
Colours, image style and voice for the Fresh Saturdays campaign
Weeks · 4
3 KB
Customer FAQ
TXTEko_Fresh_Customer_FAQ.txt
Hours, prices, delivery and returns: the knowledge file for a customer assistant
Weeks · 5
2 KB
Prompt test sheet
XLSXPrompt_Test_Sheet_Template.xlsx
Test cases, pass or fail, two runs and a pass rate
Weeks · 5, 6
8 KB
Prompt injection demo
TXTPrompt_Injection_Demo_Email.txt
A supplier email with a hidden instruction, for the safety session
Weeks · 6
1 KB
AI Automation Masterclass: practice files
VIEW THE COURSE →Templates and fictional test data for building and testing automations. Every name, email and invoice is invented, so it is safe to run through AI steps.
File
What it is
Weeks
Size
Automation map
XLSXAutomation_Map_Template.xlsx
Score your repeat tasks and map each workflow step by step
Weeks · 1, 2, 4
8 KB
Sample leads
CSVLeads_Form_Sample.csv
30 fictional enquiries for form, routing and lead scoring practice
Weeks · 2, 3
3 KB
Sample customer emails
CSVSample_Customer_Emails.csv
20 emails with the correct category, to measure AI triage accuracy
Weeks · 3
3 KB
Sample supplier invoices
ZIPSample_Supplier_Invoices.zip
Five fictional PDF invoices for data extraction
Weeks · 3
8 KB
Workflow guide and test log
XLSXWorkflow_Guide_and_Test_Log.xlsx
Guide, test log, error log and a time and money saved calculator
Weeks · 2, 3, 4
8 KB
AI for Business Leaders: templates
VIEW THE COURSE →Templates for leaders to fill in with their own organisation's details. Keep your completed versions private.
File
What it is
Weeks
Size
AI opportunity scorecard
XLSXAI_Opportunity_Scorecard.xlsx
Score ten processes for AI potential and pick your quick wins
Weeks · 1, 3
7 KB
One week pilot tracker
XLSXAI_Pilot_Tracker.xlsx
Log tasks, minutes saved and quality for a week
Weeks · 2
7 KB
Use case ROI calculator
XLSXAI_Use_Case_ROI_Calculator.xlsx
Costs, benefits, payback and a cautious case
Weeks · 3, 4
6 KB
AI use policy template
DOCXAI_Use_Policy_Template.docx
A two page policy to adapt for your team
Weeks · 2, 4
37 KB
AI strategy plan template
DOCXAI_Strategy_Plan_Template.docx
Ten sections for your final AI strategy
Weeks · 4
37 KB
Freelancing with AI: templates
VIEW THE COURSE →Templates for building and running your freelance business. Fill them in with your own details.
File
What it is
Weeks
Size
Service menu template
DOCXService_Menu_Template.docx
One page: who you help, three packages and prices
Weeks · 1, 2
36 KB
Pricing calculator
XLSXFreelance_Pricing_Calculator.xlsx
Your minimum rate in naira and dollars, and a package check
Weeks · 1, 4
7 KB
Proposal and message templates
DOCXProposal_and_Message_Templates.docx
Proposals, cold messages, follow-ups and discovery call questions
Weeks · 2, 3
37 KB
Client tracker
XLSXClient_Tracker.xlsx
Log every proposal, reply and stage, with a weekly summary
Weeks · 3, 4
7 KB
Simple agreement template
DOCXSimple_Freelance_Agreement_Template.docx
Scope, revisions, deposit and ownership for small jobs
Weeks · 3, 4
37 KB
No-Code and Low-Code Apps: practice files
VIEW THE COURSE →Planning templates and fictional sample data for building and launching your app. The salon data is invented, so it is safe to import into any tool.
File
What it is
Weeks
Size
App plan template
XLSXApp_Plan_Template.xlsx
One page plan: screens, data tables and the main user journey
Weeks · 1
9 KB
Salon booking sample data
ZIPSalon_Booking_Sample_Data.zip
Four linked CSV tables to import into Airtable or Bubble
Weeks · 2, 3, 4
2 KB
User testing kit
XLSXUser_Testing_Kit.xlsx
Test tasks and follow-up questions for five real users
Weeks · 4, 6
7 KB
Launch checklist
XLSXApp_Launch_Checklist.xlsx
18 checks for privacy, payments and polish before you share your app
Weeks · 5, 6
6 KB
Product Management with AI: templates and practice data
VIEW THE COURSE →Templates for each stage of the course, plus five fictional user interviews for the ShopAlert worked example.
File
What it is
Weeks
Size
Product brief template
DOCXProduct_Brief_Template.docx
One page: problem, users, goal and evidence
Weeks · 1
36 KB
User interview guide
DOCXUser_Interview_Guide.docx
Questions about past behaviour, not your idea
Weeks · 2
36 KB
Sample user interviews
ZIPSample_User_Interviews.zip
Five fictional shop owner interviews for synthesis practice
Weeks · 1, 2, 4
3 KB
RICE prioritisation sheet
XLSXRICE_Prioritisation.xlsx
Score and rank features, with a worked example
Weeks · 3, 6
7 KB
PRD template
DOCXPRD_Template.docx
Twelve sections, from problem to launch plan
Weeks · 4, 5, 6
37 KB
AI feature evaluation plan
XLSXAI_Feature_Eval_Plan.xlsx
Test prompts, scores and success measures for an AI feature
Weeks · 5, 6
8 KB
Digital Content Creation: templates
VIEW THE COURSE →Templates for strategy, scripting, planning and reporting. The Adire & Co examples are fictional.
File
What it is
Weeks
Size
Brand profile and persona
DOCXBrand_Profile_and_Persona_Template.docx
Voice, persona and content pillars, with a worked example
Weeks · 1, 2
37 KB
Script and hook template
DOCXScript_and_Hook_Template.docx
Ten hook patterns, a script layout and a shot list
Weeks · 3, 4, 5
37 KB
30 day content calendar
XLSXContent_Calendar_30_Day.xlsx
Calendar, pillar mix and a batch day plan
Weeks · 3, 5, 6
8 KB
Campaign results report
XLSXCampaign_Results_Report.xlsx
Track reach, engagement, saves and DMs, with a summary
Weeks · 6
8 KB
Pricing and proposal template
DOCXContent_Pricing_and_Proposal_Template.docx
Packages and a proposal outline for your first clients
Weeks · 6
36 KB
Data and AI Insights for Everyone
Practice files for the Data and AI Insights course. All businesses and numbers are fictional.
File
What it is
Weeks
Size
Misleading charts pack
PDFMisleading_Charts_Pack.pdf
Six tricky charts to decode, with tutor answers
Weeks · 1, 5
49 KB
Lagos small business survey
CSVLagos_Small_Business_Survey_2026.csv
240 fictional businesses: area, type, revenue, POS and AI use
Weeks · 2, 4 to 8
20 KB
Messy survey export
XLSXLagos_Small_Business_Survey_MESSY.xlsx
The same survey with real-world mess to clean
Weeks · 3
18 KB
Cleaning log template
XLSXCleaning_Log_Template.xlsx
Record every change, plus a problem checklist
Weeks · 3
6 KB
Insight report template
DOCXInsight_Report_Template.docx
A one page report layout with prompts
Weeks · 7, 8
36 KB
UI/UX and Digital Design
Practice files for the UI/UX course, built around MarketRun, a fictional practice project.
File
What it is
Weeks
Size
MarketRun practice project brief
PDFMarketRun_Practice_Project_Brief.pdf
The guided practice project, with weekly tasks
Weeks · 1 to 8
5 KB
MarketRun interview notes
PDFMarketRun_Interview_Notes.pdf
Five fictional interviews to synthesise
Weeks · 2, 3
7 KB
UX research toolkit
DOCXUX_Research_Toolkit.docx
App critique, interview guide, persona and journey templates
Weeks · 1 to 3
38 KB
Design quality checklist
DOCXDesign_Quality_Checklist.docx
Layout, type, colour, accessibility and handoff checks
Weeks · 4 to 8
37 KB
Usability test kit
XLSXUsability_Test_Kit.xlsx
Test plan, tasks, observation log and findings
Weeks · 7
9 KB
Case study template
DOCXCase_Study_Template.docx
A case study structure hiring managers can skim
Weeks · 8
37 KB
Web Development
Starter code, content and checklists for the Web Development course. Mama Tee's Kitchen is a fictional business.
File
What it is
Weeks
Size
Web starter kit
ZIPWeb_Starter_Kit.zip
A clean HTML, CSS and JS starting point, with Git steps
Weeks · 1, 8
3 KB
Business website content pack
ZIPBusiness_Website_Content_Pack.zip
Text, menu, logo and placeholder photos for a fictional Lagos food business
Weeks · 2 to 8
121 KB
HTML and CSS cheat sheet
PDFHTML_CSS_Cheat_Sheet.pdf
Tags, selectors, Flexbox, Grid and media queries
Weeks · 1 to 4
4 KB
JavaScript practice exercises
ZIPJavaScript_Practice_Exercises.zip
Menu toggle, tabs and order calculator, with solutions
Weeks · 5, 6
5 KB
API practice starter
ZIPAPI_Practice_Starter.zip
Live weather plus a local menu.json, with tasks
Weeks · 6
2 KB
Code review and launch checklist
PDFCode_Review_and_Launch_Checklist.pdf
AI code checks, accessibility, performance and launch
Weeks · 4 to 8
3 KB
AI-Powered Web Apps
Starter code, documents and checklists for the AI-Powered Web Apps course. All sample businesses are fictional.
File
What it is
Weeks
Size
AI app starter (Next.js)
ZIPAI_App_Starter_Nextjs.zip
Summariser, streaming chat and structured extraction, ready to run
Weeks · 1 to 4
25 KB
Prompt and schema library
PDFPrompt_and_Schema_Library.pdf
System prompts, Zod schemas, tool definitions and RAG prompts
Weeks · 3 to 6
5 KB
RAG practice documents
ZIPRAG_Practice_Documents.zip
Fictional company policies plus 10 test questions
Weeks · 5
4 KB
AI cost calculator
XLSXAI_Cost_Calculator.xlsx
Estimate monthly cost per feature and per user in naira
Weeks · 2, 6, 7
6 KB
Safety and launch checklist
PDFAI_App_Safety_and_Launch_Checklist.pdf
Keys, limits, prompt injection, privacy, payments and launch
Weeks · 7, 8
4 KB
Advanced AI Engineering
Code, datasets and review templates for the Advanced AI Engineering course. The RAG documents are shared with AI-Powered Web Apps. Eko Fresh is fictional.
File
What it is
Weeks
Size
AI engineering starter (Python)
ZIPAI_Engineering_Starter_Python.zip
Benchmark, structured output, search, RAG, evals and an agent
Weeks · 1 to 6
12 KB
Model benchmark report
XLSXModel_Benchmark_Report.xlsx
Compare accuracy, latency and cost per 1,000 calls
Weeks · 1, 8
6 KB
Fine-tuning dataset (train)
JSONLFine_Tuning_Dataset_Train.jsonl
160 labelled customer messages in chat format
Weeks · 8
42 KB
Fine-tuning dataset (test)
JSONLFine_Tuning_Dataset_Test.jsonl
40 held-out messages for a fair comparison
Weeks · 8
11 KB
System design and security review
PDFAI_System_Design_and_Security_Review.pdf
Architecture, injection, privacy, agents, cost and deployment
Weeks · 6 to 10
4 KB
Capstone write-up template
DOCXCapstone_Architecture_Writeup_Template.docx
An architecture write-up for senior reviewers
Weeks · 10
36 KB
Cybersecurity Basics
Labs and templates for the Cybersecurity Basics course. Practise only on systems you own or are allowed to test. Eko Fresh is fictional and all addresses are documentation or private ranges.
File
What it is
Weeks
Size
Threat profile template
DOCXThreat_Profile_Template.docx
Assets, threats, likelihood, impact and fixes
Weeks · 1, 4, 5
37 KB
Network traffic lab (capture)
PCAPNetwork_Traffic_Lab.pcap
A small office capture to open in Wireshark
Weeks · 2
21 KB
Network traffic lab guide
TXTNetwork_Traffic_Lab_Guide.txt
The questions to answer from the capture
Weeks · 2
708 B
Linux hardening kit
ZIPLinux_Hardening_Kit.zip
Read-only check script and a hardening log
Weeks · 3
2 KB
Rules of engagement template
DOCXRules_of_Engagement_Template.docx
Scope, permission and limits before any test
Weeks · 5 to 7, 11
36 KB
Vulnerability fix plan
XLSXVulnerability_Fix_Plan.xlsx
Score, prioritise and track fixes
Weeks · 6, 10, 12
7 KB
Sample security test report
PDFSample_Security_Test_Report.pdf
A fictional test report to read and act on
Weeks · 7
6 KB
SOC alert investigation lab
ZIPSOC_Alert_Investigation_Lab.zip
Logs, alerts and a timeline template
Weeks · 8, 9, 11
4 KB
Blue team drill pack
ZIPBlue_Team_Drill_Pack.zip
Staged logs for the live defence drill
Weeks · 11
3 KB
Incident response plan template
DOCXIncident_Response_Plan_Template.docx
A plan plus the ransomware tabletop scenario
Weeks · 8, 9, 11
37 KB
Cloud security audit checklist
PDFCloud_Security_Audit_Checklist.pdf
Identity, storage, network, logging and cost checks
Weeks · 10, 12
3 KB
Security audit report template
DOCXSecurity_Audit_Report_Template.docx
The report format for the capstone audits
Weeks · 1, 3, 7, 12
36 KB
Full-Stack Development with AI
Starter code, exercises and templates for the Full-Stack Development with AI course. Eko Fresh and QueueLess are fictional. Use payment test mode only, and only load test apps you own.
File
What it is
Weeks
Size
Micro SaaS planning kit
DOCXMicro_SaaS_Planning_Kit.docx
Problem, features, data model, pricing, repo setup
Weeks · 1, 5, 9
37 KB
Full-stack starter app
ZIPFull_Stack_Starter_App.zip
Next.js, Drizzle, Postgres, Zod, tests, Docker, CI
Weeks · 1, 3 to 8, 10
48 KB
TypeScript exercises
ZIPTypeScript_Exercises.zip
Eight functions to build until the tests pass
Weeks · 2
11 KB
Security and launch checklist
PDFSecurity_and_Launch_Checklist.pdf
AI code review, auth, testing, deploy, performance
Weeks · 2 to 12
4 KB
Portfolio case study template
DOCXPortfolio_Case_Study_Template.docx
Case study and demo day talk structure
Weeks · 12
37 KB
Vibe Coding and AI Optimization
Prompts, templates and a debugging challenge for the Vibe Coding and AI Optimization course. Example businesses and Budget Buddy are fictional. Use payment test mode only.
File
What it is
Weeks
Size
Vibe coding prompt pack
PDFVibe_Coding_Prompt_Pack.pdf
Copy-ready prompts for sites, specs, errors, data and AI
Weeks · 1 to 8
4 KB
One-page product spec
DOCXProduct_Spec_Template.docx
Write this before you ask AI to build
Weeks · 2, 9, 11
37 KB
Budget Buddy debugging challenge
ZIPBudget_Buddy_Debugging_Challenge.zip
A small app with five bugs to find and fix
Weeks · 6
15 KB
AI rules and prompt library
PDFAI_Rules_and_Prompt_Library.pdf
Rules file, reusable prompts, review checklist
Weeks · 5, 7, 8, 10
4 KB
User feedback kit
DOCXUser_Feedback_Kit.docx
Test with five real users and log what you learn
Weeks · 9, 12
37 KB
Data Analysis for Kids (age 7)
Printable worksheets and a beginner spreadsheet for the 10-week Junior Data Explorers course. The children in the practice data are made up.
File
What it is
Weeks
Size
Junior Data Explorers activity pack
PDFJunior_Data_Explorers_Activity_Pack.pdf
Printable worksheets, one page per week
Weeks · 1 to 10
14 KB
Junior Data Explorers workbook
XLSXJunior_Data_Explorers_Workbook.xlsx
Practice data and activities for Excel or Google Sheets
Weeks · 5 to 10
9 KB
Open dataset library
Well-known public datasets for extra practice, final projects and other courses. Each one comes from the source shown; please credit the source when you publish work that uses it.
Dataset
Good for
Source
Size
World Bank: Nigeria indicators
ZIP of CSVFinal projects on Nigeria: population, GDP, education, health over time
World Bank Open Data (CC BY 4.0)
454 KB
Financial Sample
XLSXExcel pivots, modelling and Power BI dashboards: sales, discounts, profit by country and product
Microsoft Power BI sample
81 KB
Chinook music store
SQLITESQL joins and reports: customers, invoices, tracks, artists (11 tables)
lerocha/chinook-database (MIT)
1.0 MB
Gapminder
CSVLife expectancy, population and GDP for 142 countries, 1952 to 2007
Gapminder via Plotly datasets
80 KB
Palmer penguins
CSVCharts and simple statistics; a friendly first dataset
Palmer Station LTER (CC0)
15 KB
Iris flowers
CSVThe classic first dataset for statistics and machine learning
seaborn-data
4 KB
Never upload real customer names, phone numbers or other personal data to practice tools or AI assistants. These datasets are safe to use because they are fictional or public.