Not every graphics editor support fractals (for example .fif), but surely you can find some tools that will allow their import and even export to some standard bitmap graphics formats, such as Truevision TarGA (.tga). This will however, create just plain picture.
Convert Fractal Image Format file to Truevision TarGA bitmap image.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert fif to tga on Windows
One of the best bitmap graphic editing program
Convert from fif file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.