The EIFSHORTNAMES option controls the structure of the extension of EIF overflow (extension) file names.
Sets the extension of EIF overflow (extension) file names to xx, where each x is an automatically assigned lowercase letter between a and z.
(Default) Sets the extension of EIF overflow (extension) file names have the structure filename.ennn, where nnn is a three-digit number beginning with 001, to distinguish them from workspace extension file names. For example, when an EIF file is named export.eif, the extension files are named export.e001, export.e002, and so on,