Analyze Interfile-type files with this tool. iftadd help you insert the items with specified key name from Interfile-type file2 to file1. If no key names are specified, then all items are copied. If file1 does not exist, it will be created.
Here is an example on how to use this program: iftadd patname.hdr iea345.hdr patient_name. This tool is command prompt based so dont expect any fancy interface to guide you through the analysis process.

Usage: iftadd [Options] <file1> <file2> [key1 [key2...]]

Options:
-ovr
When key name exists, the key and and its value are replaced
-nodupl
When key name exists, the new key and its value are not inserted
-h or --help
Print this message and exit
-v, --version or --build
Print software build information and exit
--silent
Program works silently, printing only error and warning messages.

The license of this software is Freeware, you can free download and free use this calculator software.