FD files exist as 3 different types. Please find information about each of them below.
Type 1: LaTeX Font Definition File
LaTeX font definition file stores commands. Fonts mapped to TeX font specifications. Used how LaTeX font attributes translate into TeX fonts. Commands declare font families and font provider files. St...
LaTeX font definition file stores commands. Fonts mapped to TeX font specifications. Used how LaTeX font attributes translate into TeX fonts. Commands declare font families and font provider files. Stored plain text format. Also contain font encodings. More information available. Created formatted documents using typesetting system LaTeX.
Occasionally options associated with LaTeX class defined separate files with extension .clo. Usually defined .cls file. Prior LaTeX 2.09, no distinction between classes and packages. All style files had .sty suffix.
Programs supporting fd extension for settings file type. Main platforms Windows, Mac, Linux, mobile. Click link for more information LaTeX action fd file.
File descriptor in Unix operating systems and variants denotes with fd extension.
DataFlex software associates fd file real datafile name internal number. Also contains column information definition each DataFlex table. Used compiler associate file field references source code internal runtime numbering scheme.