i still can't get it. Maybe i give another example, i have original file as below;

Test Fish#10125#STAR.txt
Test Fish#52134#MOON.txt
Test Fish#32598#CLOUD.txt
Test Fish#66789#STORM.txt

I need to remove the space between "Test Fish" but i want to do one time for all file before i encrypt it.

After i encrypt the file, the file name will become TestFish#10125#STAR_encrypted.txt ... so i need to change back to original file name also in one time for all files.

Does anyone know how to do this or know what ‘functions’ I should use???