A little guidance.
Practical answers, worked examples, and the tools to finish the job.
Best Image Size for a Website Blog Post
Choose blog image dimensions that stay sharp without making pages unnecessarily heavy.
Why a Transparent PNG Turns White When Converted to JPG
Understand why JPEG removes transparent areas and how to choose the right background before converting.
How to Change Case in Excel Without a Formula
Change a copied Excel column to uppercase or lowercase without formulas, with checks for names and acronyms.
Clean a copied list without losing information
Decide which differences matter before trimming, deduplicating, or sorting a list.
Move spreadsheet data between CSV and JSON
A small export example explains strings, missing fields, and formula-safe CSV output.
Check mouse and keyboard input in a browser
Use repeatable observations to separate browser behavior from possible device problems.