Not sure I am in the right category but....
I have a google sheets doc that somehow I have saved to my google drive account by mistake. When i look for instructions to move it to Dropbox I keep getting the following instructions:

I can't find the mentioned "..." to access the Activity menu item. What am I doing wrong. I tried a 3rd party app but it doesn't move as google shets. When I try to download it saves as xslx and but I have app script there I want to use and it doesn't apply.
What am i doing wrong??? How can I get it across?
Thanks