Characters not allowed in file names — the full list
By Igor R.
September 21, 2026
Short answer: Windows blocks nine characters in file and folder names — < > :
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Flag emoji: why Windows shows letters instead of flags
By Igor R.
September 21, 2026
Short answer: A flag emoji isn't one character. It's two letters from a special alphabet,
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Email Signature Symbols That Don’t Turn Into Emoji
By Igor R.
September 15, 2026
By Igor R. · Updated September 2026 Tested in Outlook for Windows, Outlook on the
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How to Insert Symbols in Google Docs (Every Method)
By Igor R.
September 14, 2026
Short answer: go to Insert → Symbols → Special characters, then search by name —
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How to Insert Symbols in PowerPoint (Every Method)
By Igor R.
September 14, 2026
Short answer: click into a text box, then Insert → Symbol. For speed, Windows Alt
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How to Insert Symbols in Excel — UNICHAR, CHAR, Alt Codes and the Font Trap
By Igor R.
September 6, 2026
Updated September 2026. Tested on Excel for Microsoft 365 (Windows 11) and Excel for Mac.
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