How to add number in excel automatically

- How to add serial number in excel automatically
- How to add in excel automatically
- How to add dates in excel automatically
- How to add rows in excel automatically
- How to add months in excel automatically
- How to add time in excel automatically
- How to add weeks in excel automatically
- How to add days in excel automatically
- How to add dates in excel automatically formula
- How to add months in excel automatically using formula
- How to add years in excel automatically
- How to add columns in excel automatically
- How to add one number automatically in excel