# Hex Format Conversion Settings Hex Format > Conversion |

The Conversion tab defines how files should be loaded and saved. Pick a Conversion method. When using External program methods, you will need to specify a conversion program with the appropriate path and command line switches in the Loading edit. In order to support filenames with extended characters, make sure to pick the appropriate filename encoding (Unicode or ANSI). The following variables will be replaced with the indicated information: %s source file %t target file %o original file Conversion programs are only considered successful if they return a zero exit code and generate a non-empty file. If you have a conversion program you want to use before saving, you can unmark the Disable editing checkbox and in the Saving edit specify that conversion program's path and command line switches. The above variables apply.