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.
Mars' average surface temperature is -55 Â°C, but the Red Planet also experiences some variability, with temperatures ranging as high as 20 Â°C at the equator during midday, to as low as -153 Â°C at the poles.nd like all of the gas giants, Neptune has a much hotter core, which is around 7,000Â°C. In short, the Solar System runs the gambit from extreme cold to extreme hot, with plenty of variance and only a few places that are temperate enough to sustain life.