Ribbon cable is on 0.05in centres, but there is, less commonly, 0.1in ribbon cable.
Anyway, the 0.05in was made for the IDC/2-row regime.
There are available 0.1in shells available - Molex "C-Grid". They are my favourite. You have to buy the shells, and the contacts (there are female contacts and male pins, too), and a crimping tool.