Decision Trees in Python: A Model You Can Actually Read
Train a decision tree classifier with scikit-learn, print its rules as plain if/else text, measure accuracy honestly with a test split, and avoid overfitting…
Read article →Which Automation Tool Should You Learn? VBA vs Python vs Power Automate vs SAP Scripting
Which Automation Tool Should You Learn? VBA vs Python vs Power Automate vs SAP Scripting
A practical guide to choosing between Excel VBA, Python, Power Automate and SAP GUI scripting for automating office work — based on the task,…
Read article →Outlook Rules and Quick Steps That Actually Clean Your Inbox
Outlook Rules and Quick Steps That Actually Clean Your Inbox
Set up Outlook rules, Quick Steps, search folders and a few smart habits so your inbox sorts itself — with real examples for reports,…
Read article →Google Sheets QUERY Function for Excel Users
Google Sheets QUERY Function for Excel Users
Google Sheets’ QUERY function lets you filter, group and sort with SQL-like syntax in one formula. Learn it with examples mapped to Excel features…
Read article →Linear Regression From Scratch in Python: How a Model Actually Learns
Linear Regression From Scratch in Python: How a Model Actually Learns
Code linear regression with gradient descent in plain NumPy, watch the model learn slope and intercept, then check it against NumPy and scikit-learn. The…
Read article →Unpivot Monthly Columns into a Clean Table with Power Query
Unpivot Monthly Columns into a Clean Table with Power Query
Turn a wide report with Jan–Dec columns into a tidy Month/Value table using Power Query’s Unpivot — so pivot tables, charts and SUMIFS finally…
Read article →Outlook Calendar Tricks for Busy Weeks
Outlook Calendar Tricks for Busy Weeks
Practical Outlook calendar features: Scheduling Assistant, shorter meetings by default, a second time zone, focus blocks, propose new time, sharing and quick keyboard shortcuts.
Read article →Linear Regression in Excel with LINEST, SLOPE and FORECAST — No Add-ins
Linear Regression in Excel with LINEST, SLOPE and FORECAST — No Add-ins
Machine learning starts with a straight line. Fit a regression in Excel with SLOPE, INTERCEPT, RSQ, LINEST and FORECAST.LINEAR, and learn how to read…
Read article →PowerPoint Slide Master: Fix Every Slide in One Place
PowerPoint Slide Master: Fix Every Slide in One Place
Stop formatting slides one by one. Use PowerPoint’s Slide Master to control fonts, colours, logos and layouts for the whole deck — and rescue…
Read article →Python Lists, Dictionaries and Loops for Excel Users
Python Lists, Dictionaries and Loops for Excel Users
The three Python building blocks you use in every script — lists, dictionaries and loops — explained with Excel comparisons and small, runnable examples.
Read article →Read and Write Excel Files in Java with Apache POI
Read and Write Excel Files in Java with Apache POI
A beginner-friendly guide to reading and writing .xlsx files in Java using Apache POI — with complete, working examples and common pitfalls.
Read article →Mail Merge from Excel to Word: Letters, Emails and Labels (Step by Step)
Mail Merge from Excel to Word: Letters, Emails and Labels (Step by Step)
Send personalised letters, emails or labels from an Excel list with Word Mail Merge — including number and date formatting fixes that trip everyone…
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