Replace "%20" in filename

Dear all,

I am new to this forum, and couldn't find the answer on the forum.

Some files that I download contain one or more character strings <%20> (< and > not included) in their filename, which should be replaced by a space. I can't get this working.
I created a rule which I first tested: It added the date before he filename, and than changed that action within the same rule by using the replace function in the rename menu: Find <%20>, replace by < >. So the script was really triggered, but the replacement doesn't work.

What can I do?

Thanks.

Can you post screenshots of your rule as well as the replace interface?

I can't see how to attach/upload the 2 screenshots needed.
I replied to your confirmation approval of this question e-mail with the 2 attachments.