Excel 4.0 Workbook. .xlw. An Excel 4.0 file format that saves only worksheets, chart sheets, and macro sheets. You can open a workbook in this file format in Office Excel 2007, but you cannot save an Excel file to this file format.
According to scientists, the surface of Neptune is one of the coldest places in the Solar System. At its surface, where the clouds of the planet touch space, the temperature of Neptune can dip down to 55 Kelvin. Thatâs -218 degrees Celsius. Neptune and its Great Dark Spot.
Neptune is one of the two planets classified as an ice giant.. Like Uranus, its composition is made up more heavily of ices than the gas giants of Jupiter and Saturn. Neptune's atmosphere is composed predominantly of hydrogen and helium, with traces of methane to create the bluish color.Unlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights.The average temperature at the top of the cloud tops is minus 346 degrees Fahrenheit (minus 210 degrees Celsius).nlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights. The average temperature at the top of the cloud tops is minus 346 degrees Fahrenheit (minus 210 degrees Celsius).