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1- Select ‘From File’ in the Import from dropdown and select the file to import the test case from (.bqo file) and click on the Import button. 
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The test case should be imported successfully. 
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II - From Other Application :
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Select ‘From Other application’ in the Import from dropdown and select the application to import the test case from and select the test case.
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Click on the Import button and the test case should be imported successfully.
