When attempting to open TimetableFind version 1.30 or below and receive the message '"TimetableFind" can't be opened because Apple cannot check it for malicious software' using the latest macOS Catalina. Please follow the below steps for a workaround.
Open TimetableFind | Click OK on the message | Open the General Tab | System Preferences | Security & Privacy | Click Open Anyway next to '"TimetableFind" was blocked from use because it is not from an identified developer.' (Click the lock and provide admin access if required).
For further information click the below link: