# xdelta > Delta encoding utility. > Often used for applying patches to binary files. > More information: . - Apply a patch: `xdelta -d -s {{path/to/input_file}} {{path/to/delta_file.xdelta}} {{path/to/output_file}}` - Create a patch: `xdelta -e -s {{path/to/old_file}} {{path/to/new_file}} {{path/to/output_file.xdelta}}`