I've set up my spreadsheet with columsn for Addy,comma,Payment.
I can easily copy the data I need:
1vaVQAnPTqPbyjia4BXo23zoPXJWyxfuu,1.25000
1GSEV5xNsvdHErKrjt3xBUbMAowqbMAfue,1.12500
12ewZzCEm1EBNWHgvMK4zCr2jnZu41aQiy,1.00000
3Bf62ofFiXGh5Z1BkPiEzFcZ8D7XELNU6L,0.20000
12Dnrcd5vjnSYCBy2E3xdzhbVv1P2vy1eS,2.00000
15HqMP4KRM93Bs23Lf9THt7uWZfQrymrFp,1.20000
18BmdiABdexDtz6aa8C4szJiz6ZxekTRce,1.80000
1DAo6FnmrJZQtNgyReNbiLR9EhLKyGKsAN,3.00000
16asgaNXHHqwJtS8tCvsPvBZdnyQVHkHAD,1.80000
13TQEgpS1ENz76HGTwSFh8Xv6oqdvqdrRV,0.90000
18DcTobmd1dF4m5fAspCWLpk55bbCJem4,3.60000
1FDEWkyy2vRzqoEG6cvDrKczEHEChou5N9,1.35000
1CNVoTNpbuLXxwgSdLR6Q871nqJEsBxWev,4.05000
1PXMwGoF86reLbjEfSk3qij5R8bbX6gbM,1.00000
After copying this into Electrum, I get this transaction.
Note:
1. Sending payments to multiple addresses is always scary and I check everything 3 times.
2. My wallet is set to mBTC, I find this unit to be most convenient.
3. I've set Electrum to not use change addresses, that's why the remaining funds are send back to my own address.