FileOps is a practical tool to work on files that tries to bring together, in just one application, everything related to editing and working on files.
This way, from the FileOps interface you can divide a file into more manageable pieces, join various files into just one, and do a checksum (hash check) on each of the resulting files. You can work with MD5Sum and SFV files. You can even create your own FOC (FileOps Checksum) file.
For FileOps to work correctly you need to previously install NET Framework 2.0 or later.