Create a change request for multiple customers from spreadsheet

Hello Experts,

1.We have a spreadsheet with 100's of Customer data maintained in it , can we create a change request by downloading data from spreadsheet directly instead of manually entering the data in the CR. Also can we create a single change request for multiple Create customers.

2.Can we create CR's automatically , lets say we have 100's of customer data loaded into MDG hub by Data Services using DEBMAS Idoc , can this create automatic CR's , is this possible.

Thanks.