[mahaveer]

I have a catalog of about 30000 books in excel. I have added those books in the calibre database using the command

=CONCATENATE("calibredb.exe add -e -a """&A2&""" -t"""&B2&"""")

which generates

calibredb.exe add -e -a "Warwick Deeping" -t "Exiles"

Using the above add I am only able add the Title and Author field.
I need to update the other fields :-

-Publication Date
-Tags

How can this be done ? It is very tedious for to do it manually for a list of 30000 books.

--Mahaveer