The ACUCOBOL Vision files are usually comprised of two files. One file contains the data portion and one file contains an indexing structure. Depending on what you are trying to accomplish you may or may not need to access both files. To be able to give you more insight about parsing the files requires a knowledge of what version of the Vision file system the files were created with. It would also be helpful to know what options were used when the files were created. When using Acucobol all of these items are automatically handled by the file handler. Do you have Acucobol available? There are many ways to do what you are asking.