I work using Excel and need to have numbers separated by a comma. My Belkin numeric keypad only has a decimal point on instead of a comma. Before I installed Excel 2016, I was able to change the decimal point to show as a comma when I typed it. Now, something has reset and I can't change it back to a comma. I have tried the Language & Region - Advanced - Number Separators - changed the full stop for a comma, but it doesn't seem to be working. It is really important for the speed of my work in Excel to be able to press the decimal point on my numeric keypad and for it to read as a comma to separate the numbers I type. Hope someone can help. Thanks a million.