Need help to enhance and improve VBA code. Need to end the operations

Hello Forum! Good morning! I am very new to the forum and would like help with codes.

here is my code which I need help with

this is the middle of the code

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What can I do? I need the process (operation) to end if it is unable to locate a file which ends with the word "PROCESSED.csv". Currently, if it is not able to find the required file, it will show the dialog box. This is good. But after i click the "ok" on the dialog box, it continues with the operation which is actually not going to be correct.

How do i code this so that if it is unable to find the "????PROCESS.csv" file, it will end the operation and will not continue?


Thank you