LibreOffice Version: 126.96.36.199.beta1 Build ID: 5271b34bec742e190e2fe5a7dadb7334a705b54 on Russian Windows XP Professional SP3 (32bit)
Create new or open any existing Calc spreadsheet. At any cell (for example, A1) click with right mouse button and from popup menu select "Format cells..." Calc crashes without any messages. If we try to start it agan, we see suggestion for recovery.
In older LibreOffice versions (for example, 188.8.131.52 Build ID: 0eaa50a932c8f2199a615e1eb30f7ac74279539) the was no such problem.
Resetting user profile gave no results.
99% sure this is a dupe of 65022. Windows only and it is going about a 'format' dialog (see all dupes in that bug). Thanks for reporting though!
If you still can reproduce this using LibreOffice 4.1 beta 2 (I think the scheduled release is somewhere this week), please reopen this bug :-).
*** This bug has been marked as a duplicate of bug 65022 ***