May I know if you are getting this pop-up even after the check box is enabled? If yes, first find the step when it is coming, use the click activity, and select the app that you want to use.
If you couldn’t find out Use parallel activity and write the code on one side to handle this pop-up message.
While downloading the file from application inside the flow using .csv file.
Also, I can not use the below steps as not highlighting the “How do you want to this file” popup.
How ever I can use the Findelement activity whose ouptut is of type uielement.
How can I use this uipelemnt type in If condition and use Esc option?
You can use check App State Activity
In the Target Appears Section
Use click activity and Keyboard shortcuts.