There are a set of excel utilities that are available for download from Oracle support.
They require the SDK set up to work.
They are as follows.
Import and Export Activity Details, including general Activity Data, Relationships, Resource Assignments, Code Assignments, Resource Assignments, Steps, Expenses, and UDF Assignments to/from Excel.
For more information, see Note:903308.1
Import and Export all Global Dictionary data to/from Excel.
For more information, see Note 893942.1
Import and Export the EPS Structure and Project-level data to/from Excel.
For more information, see Note 894555.1
Import and Export the WBS Structure data to/from Excel.
For more information, see Note 910968.1
To register for Oracle support you will need a valid support identifier which you should be able to get from your IT department.
Search for Excel Utilities in the knowledge section.
Hope this helps.