Here a descriotptin what I did:

1.) I created a file with Openoffice 3.1.1 or earlier. There I insert a OLE
table Object directly from OpenOffice Calc. 
2.) Then I opened it this document with Microsoft Office 2007 and saved it again
to solve some conflicts for Microsoft Office in general.
3.) My last step was to save it.

If I open it with OpenOffice 3.1.1 the table object which is insert in the
document is dispalyed like it should be but no table object is displayed in
OpenOffice 3.2.
In Microsoft Office 2007 there is also no problem with this table object only in
OpenOffice 3.2