This spreadsheet allows you to enter a spreadsheet ID and various parameters to generate the corresponding HTMLEMBED code
https://docs.google.com/spreadsheets/u/1/d/1sqLhj7oWGPEU7vjm-SfD55jqJEi0h47CPeDcILtDUVE/htmlembed?single=true&gid=0&range=A1:D15&widget=TRUE&chrome=TRUE&headers=TRUE
https://docs.google.com/spreadsheets/u/1/d/1sqLhj7oWGPEU7vjm-SfD55jqJEi0h47CPeDcILtDUVE/htmlembed?single=true&gid=0&range=A1:D15&widget=FALSE&chrome=FALSE&headers=FALSE
https://docs.google.com/spreadsheets/u/1/d/1GpxuEELBpnZiBVlA3cu4WVhghsqYaKqoF5IDwP3LoUI/htmlembed?single=true&gid=182789083&range=A1:D11&widget=false&chrome=false&headers=false
https://docs.google.com/spreadsheets/u/1/d/15VKAXIOVoTdCuX06ogXFEwpYPYfbop0qB3ccFID_540/htmlembed?single=true&gid=1480387088&range=A1:C1&widget=FALSE&chrome=FALSE&headers=FALSE