Feature Request

[billsker]

It would be nice to be able to provide some sort of command line argument to override the usage of the sheet names present in the original xlsx file as names for the corresponding csv files ... for example, if the xlsx file being converted has these sheet names:
"Customers"
"Suppliers"
"Contacts"

I've encountered use cases where It would be nice to be able to force conversion to
sheet1.csv
sheet2.csv
sheet3.csv
instead of to the default sheetName copy behavior:
Customers.csv
Suppliers.csv
Contacts.csv

I think I see how I might do that within a python script using "sheetId" in the "convert" call, but it'd be nice to be able to do this from the command line as well ...