Function to skip the process if the sequence number is missing

Hi All,

I have a macro to open the files in a folder based on the sequence number mentioned in the program and copy&paste the data in another file.

Like , open files between 1 to 100.

But i am getting error while run the macro, because some files were missing between 1 to 100.

i want to know how to skip this and to proceed with the available files.

Below the macro i am using:

HTML Code: