IBM Optim export file
File type: Various data file
The oef file extension identifies an IBM Optim export file. It contains data exported by Optim Development Studio.
Optim Development Studio is a database development environment from IBM.
File type category:
Various data file
Date updated: October 12, 2026
IBM Optim Development Studio is an integrated database development environment for Oracle, DB2, and Informix. An oef file is an export data file produced by the program.
The file is a specialized Optim export file intended for use with the Optim software that created the export.
The format is associated with the Microsoft Windows version of Optim Development Studio.
Open the oef file with Optim Development Studio on Microsoft Windows. The file is associated with the Optim software that created the export, so other applications may not recognize it.
An oef file is already an export file and generally has no direct conversion to another format. If the data is needed in a different format, use Optim Development Studio or the source database to create a new export in that format.
Software apps that export oef files:
Microsoft Windows
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