The best way to do it is to rename the file then force a replication from a known good server.
If it is not too corrupted you can do an updall -r and it will rebuild the indexes.
Try running nfixup.exe against it. If that doesn’t work, try ncompact -c against it.
Note: ncompact exists in all workstation installs. nfixup is not part of the client — youcan copy it off a server that runs at a similar NBotes version.
make sure to use the -c option with compact (ncompact -c whatever\your\file.nsf)
And when all else fails there are third party applications that cost money that can recover your NSF file like the apps offered by RecoverMyData. You can see more information here <a href=”http://www.recoveryourdata.com/lotus-notes-recovery.html”>http://www.recoveryourdata.com/lotus-notes-recovery.html</a> The best part about that is you can download the trial first and see if it CAN recover your corrupted NSF file. And then and only then do you have to shell out the $100 or so.
What error messages are you getting?