Secondly, Outlook for Mac doesn’t allow OLM file to open on other email clients or operating systems, apart from Mac, thus ruling out the option of backup on other systems. If this error hits your system, means Outlook 2011 for Mac is inaccessible and the application needs to be re-installed, but the problem is if you try to re-install the application, you might end-up losing previous data.
Re-installing the application may fix this problem”.
Error – “This application failed to start because OLM.DLL not found.