file extension Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “file extension” in the English Dictionary

"file extension" in British English

See all translations

file extensionnoun [C]

uk   us  
a dotfollowed by three ​letters, such as .​doc or .jpg, that ​forms the end of the ​name of a ​computerdocument: Be ​sure to ​type in the ​documentname and ​fileextension before you ​click "​save".
(Definition of file extension from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of file extension?
Add Cambridge dictionaries to your browser to your website
Word of the Day
public school

in England, an expensive type of private school (= school paid for by parents not by the government)

Word of the Day