cosfile
This Unix-like utility summarizes a COS-blocked dataset. It reports the number of records and files in the dataset and determines the percentages of ASCII and binary data in the dataset.
cossplit
This Unix-like utility splits a multiple-file COS-blocked dataset into individual COS-blocked files.
cosconvert
This Unix-like utility strips the COS-blocking off of a COS-blocked file and reformats it, depending on the conversion option chosen.

To build these utilities on your system, download the C++ source code and Makefile here. You will need a C++ compiler (e.g. g++). Untar the file that was downloaded to your system - this will create a directory named cosutils. Change directories (cd) into the cosutils directory and type make at the prompt.