How to represent a DateTime in Excel

Question

What is the best way of representing a DateTime in Excel? We use Syncfusions Essential XlsIO to output values to an Excel document which works great. But I can\

Answer 1

Some versions of Excel don't have date-time formats available in the standard pick lists, but you can just enter a custom format string such as yyyy-mm-dd hh:mm:ss by:

1. Right click -> Format Cells
2. Number tab
3. Choose Category Custom
4. Enter your custom format string into the "Type" field

This works on my Excel 2010