When exporting tests from an Excel file into ALM/QC 11, the Excel Add-in crashes after Step 7 of 8 with the error "A general error has occurred: ‘Automation error, The object invoked has disconnected from its clients.’"
The root "Subject" is added into the Subject entries in the Excel file. For example, a wrong entry in Subject column is like "Subject\sub_01\sub_02".
NOTE: The error can also occur due to the application issues.
The root "Subject" folder in the Subject column needs to be removed. The subject entry should be like "sub_01\sub_02".