file extension (plural file extensions)
- A short series of text characters at the end of a computer filename, used to indicate the type of contents and the software that will be required to operate or open it.
- Synonyms: filename extension; extension (ellipsis)
- Hypernym: extension
A text file may have a file extension of .txt.
string of characters
- Chinese:
- Cantonese: 副檔名／副档名 (fu3 dong2 ming4)
- Mandarin: 擴展名／扩展名 (kuòzhǎnmíng) (mainland China), 文件擴展名／文件扩展名 (wénjiàn kuòzhǎnmíng) (mainland China), 副檔名／副档名 (fùdǎngmíng, fùdàngmíng) (Taiwan), 延伸檔名／延伸档名 (yánshēn dǎngmíng, yánshēn dàngmíng) (Taiwan), 後綴名／后缀名 (hòuzhuìmíng) (mainland China)
- Czech: koncovka souboru f, přípona souboru f
- Danish: filtype, filendelse c
- Dutch: bestandsextensie
- Finnish: tiedostopääte
- French: extension de fichier
- German: Dateiendung
- Greek: επέκταση ονόματος αρχείου (el) n (epéktasi onómatos archeíou), επέκταση αρχείου (el) n (epéktasi archeíou)
- Hungarian: fájlkiterjesztés
- Italian: estensione di nome di schedario
- Japanese: 拡張子 (ja) (かくちょうし kakuchōshi)
- Kazakh: файл атауының кеңейтімі (fail atauynyñ keñeitımı)
- Korean: 확장자(擴張子) (hwakjangja), 확장명(擴張名) (ko) (hwakjangmyeong)
- Norwegian:
- Bokmål: filetternavn n, filendelse m, filnavnsuffiks n
- Nynorsk: filetternavn n, filending f, filnavnsuffiks n
- Polish: rozszerzenie (pl)
- Portuguese: extensão (pt) f
- Russian: дополне́ние к файлу (dopolnénije k fajlu)
- Spanish: extensión de archivo
- Swedish: filändelse c, filsuffix n
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