Importing invoices from excel into Zoho Books ... Weird experiences ...

Hi,

This is a "newbie" question. Checked the forums & faq's with no success and hence this question.

We are trying to import invoices from excel docs into Zoho Books.

We downloaded the sample-file and imported it successfully.
( https://books.zoho.com/common/import/sample_invoices.csv )

Then we tried changing the data in this sample file (e.g Invoice-Date field). A subsequent import fails. (see attached doc). Basically complaining about un-acceptable format. (strange, since we did'nt change the format but merely the data. )

Feeling stumped !.

Help !

rk & aruna