## PreFortranFile

`PreFortranFile` is an option for `Write2` which may be set to a file name (or a list of file names) or a string, which will be put at the beginning of the generated Fortran file.

### See also

[Overview](Extra/FeynCalc.md), [Write2](Write2.md), [PostFortranFile](PostFortranFile.md).

### Examples