Date format
In spreadsheets, it is common to have date formats which do not support the standard ISO format. To overcome this issue a standard format can be specified in the custom mapping step. In the example there is a custom mapping for dates such as those in the "samples" :
Custom mapping:
{
"format": "dd/MM/yyyy HH:mm"
}
To find out more about advanced mapping for custom date formats, see the Elasticsearch reference documentation.