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Checksums, file types, ZIP archives and staying safe with downloads.

Files & SecurityHow to Convert Excel to CSV Without Breaking Accents or CommasConvert XLSX and XLS spreadsheets to CSV the right way: every sheet, correct delimiters for your region, and UTF-8 so accents and symbols survive.October 21, 2026 · 2 min read

Files & SecurityMD5 vs SHA-256: Verifying Downloads with ChecksumsWhat checksums are, the difference between MD5, SHA-1 and SHA-256, and how to check a file's hash on Windows, Mac, Linux or in your browser.October 21, 2026 · 2 min read

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