There are two different file formats for databases used in Spooky2 – ZIP and CSV. The ZIP format we use is encrypted, cannot be manually unzipped, and cannot be read by any software but Spooky2. This is to help prevent third-party profiteering on planned future frequency development, and the main database now comes in this format.
Please note once again that this can only be unzipped and read by Spooky2.
CSV files can also be read and loaded as custom databases, and these can be edited and used normally.
Source: Page209-210 of Spooky2_User’s_Guide_20161009