Meaning of “sig file” in the English Dictionary

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"sig file" in Business English

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sig filenoun [ C ]

uk us also signature file IT

in an email, a few lines of information after a signature, giving information about the person who sent the email. When someone creates a sig file, it is added automatically each time they send an email:

I created a new sig file for my new messages, replies, and forwards.

(Definition of “sig file” from the Cambridge Business English Dictionary © Cambridge University Press)