In CR2008 there is no option to save as previous .rpt versions so I would assume the same goes for 2011, although I have never used it. In this thread, SAP seems to confirm that "there will never be" a save-as option for previous versions' filetypes.
From their site:
For forward compatibility, RPT files authored in SAP Crystal Reports 2011 can
be opened with the following older versions of Crystal Reports:
? SAP Crystal Reports 2008
? Crystal Reports XI
This includes the COM- and .NET-based runtime engines shipped with these
products.
New features in SAP Crystal Reports 2011 will be ignored by the older versions
of the runtime engines.
That sounds like a good way of getting into trouble. My advice is instead try to get your hands on a copy of CRXI instead of putting yourself through the potential headaches of dealing with versioning bugs.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…