How to initiate variables using file.sol

I need to provide an initial (staring) solution for a mixed integer programming from a solution file (file.sol) to help the solver (cplex) in finding the optimal solution faster, but I do not know how.  I need to mention that:

1. I have changed the setting for cplex to “Use advanced basis”
2. the file.sol has been created by aimms for the same MIP 
3. My knowledge of aimms is basic 

I  would appreciate if you could provide some details about variable initialisation.

Thanks