There has been some discussion around reviewing Hyperion extract files. This is recommended but not required. These files are provided to you as a tool to review data and look for inconsistencies. It is easier to review data when they are in a spreadsheet rather than multiple places in Hyperion. Since you are the expert on your data, we give you this opportunity to review the data before it is loaded into Hyperion. If there are things that need to be fixed, you would go into Hyperion and make your changes there. BPS had 26 extracts that over the years we were able to incorporate into the process. Since Hyperion is relatively new, it will take some time to learn and become proficient with it.