Create the new Fiscal Year in Common Services/Fiscal Calendar

I have done that 

G/L Periodic Processing

Create New Year

How can import an excel into a batch in sage 300. Is there any template for it

Export an existing one.

Thanks for your feedback but the one exported is not showing in my folder. What can I do

I have done this but we haven't posted all transaction for 2020 and the system has posted the closing entry already. Please what can I do

You can post to previous years.