.TEC File Extension
File TypeTECkit Compiled Mapping File
What is a TEC file?
File created by TECkit (Text Encoding Conversion toolkit), a program used for conducting text conversions; saves the compiled version of a text mapping that was specified in a plain text .MAP file; sometimes used in conjunction with LaTeX technologies to convert characters on the fly when generating LaTeX documents in different languages.
TECkit was originally created to convert text from older 8-bit encodings to Unicode.