GrimRob

Cheers running it now. ctrl-click on help menu for Windows

Actually I tried your first idea. Although it was monumentally slow searching through 20,000 entries (even on a SSD drive) it was quite quick to select and delete them, quicker than I thought it would be. I am down to 8000 records now. Searching seems quite slow still but has definitely improved.

Problem is the notebook is so slow to load. It world take a very long time to do what you suggest. What I really want is a way of doing it without having to open it in the UI.

I have a notebook which is purely used for logs. It get send several logs a day by email and this has been happening for some time now and the notebook is very slow to search in Windows with nearly 20,000 entries. I am not interested in anything more than a few weeks old. Is there a way I can purge away old content, ideally by some setting or script I can run.