Leave data: some questions

Leave data: some questions

Hi,

I had some questions regarding leave data.

1. Can we import initial leave data for just a few people into Zoho (don't want to import data for all employees, just a few)
2. What is the format of the import file - names of columns, etc.?
3. Is there a way to export the leave data for each employee into excel?
4. What is the function of the "generate rollover" link? Does it cause leave to roll over from the previous year? Is it supposed to be used once a year only?

thanks,
Krishna Kumar