| filename extensions | art-335 |
| fd | |
| TechTarget file types | art-336 | FD-Declaration-file-FORTRAN |
| TechTarget file types | art-336 | FD-Field-offsets-for-compiler-DataFlex |
| English | eng-000 | Declaration file |
| English | eng-000 | Field offsets for compiler |
| English | eng-000 | LaTeX Font Definition File |