How to add two dates together in excel

- How to add two dates in excel
- How to add two different dates in excel
- How to add between two dates in excel
- How to add days between two dates in excel
- How to add two dates in one cell in excel
- How to add or subtract two dates in excel
- Как поставить дату в excel
- Как открыть два файла excel в разных окнах