Why do you want a TTF?
You cannot install a ZIP file. You must "convert" it by extracting the TTF file hidden inside.
If you prefer not to use your computer's built-in tools, websites like CloudConvert zip to ttf converter
Are there inside your ZIP that you want to turn into a font?
While "ZIP to TTF" sounds like a technical file conversion, it is technically an extraction process Why do you want a TTF
A .zip extension tells your computer: “I am a compressed archive. I contain many files inside me to save bandwidth.” A .ttf (TrueType Font) extension tells your computer: “I am a set of mathematical instructions on how to draw the letter ‘A’.”
unzip yourfontfile.zip → ls → fc-scan yourfont.ttf If you prefer not to use your computer's
Never upload sensitive or commercial fonts to a free online converter unless you trust the website's privacy policy. Many free sites steal font data.