We've just upgraded our development environment to 12.0.6 (on SQL Server) and are doing some checking. We have noticed an issue with grid portlets where if there are > 300 records returned and you choose Export To Excel, then only the first 300 records are exported. If you choose the new option "Export to Excel (Data Only) all the data is exported. This happens with our migrated custom portlets from 8.1, brand new v12 ones and out of the box v12 grid portlets (we tried it with Rights by Licence Type). It also happens with users who have Office 2007 and Office 2003 with the compatibility pack. I've got a case open with support and their initial reaction is it's a bug but I wondered if anyone else had come across this yet?