Exception handling 

Let's add an error handler try-catch to exit gracefully if there are errors.

1. To do that, look up Error handler and then drag and drop the Try action. We will add most of the automation steps in this Try block in the next few sections. 
2. Before we do that, add the Catch action below Try.
3. In the Catch properties, choose an Exception type of AllErrors.
4. Create a String variable called errorMessage to store the error message.
5. Click on the wizard icon on the right of the input box to create new variables, as shown here:

6. Click on Apply to apply the properties.
7. Then, within the Catch, add a message box with the message Following error happened $errorMessage$. 
8. Finally, click Save at the top to save the bot so far, before we open the SO Excel file.