BW 3.5 Query has been upgraded to 7.0 and needs to revert it back to 3.5

Hi,

Right now our system is upgraded to BI 7.0 but our queries are still there in 3.x.

Yesterday I've enhanced the existing query unfortunately I opened the query in BEx 7.0 and made the changes ( so the query has been upgraded to new 7.0 version) and saved.

Now I need to change back it to BEx 3.x Can any one help me how to revert back my query to 3.x.

Problem: When I'm trying to open the query in 3.5 again for further changes it is telling your query has been upgraded to new version so you can't make the changes in 3.x version.

Thanks,

Kiran