Convertilo Blog
Guides and tutorials on security, online tools, and file workflows.
May 3, 2026 · Guides
Why Excel Turns Numbers into Dates and How to Stop It
Excel and Google Sheets love to 'guess' formats: paste an SKU like 03-04 and you get April 3. Here's why it happens and 5 working ways to permanently stop the auto-conversion.
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May 3, 2026 · Guides
Barcode Types Explained: EAN, UPC, Code 128, ITF and More
A plain-English guide to the main barcode formats: where they are used, how they differ, and which one to choose for retail, marketplaces, warehouses, shipping, or books.
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