Linking Matlab and CST

Hello there,
I am a beginner in linking Matlab and CST and in the first step I have encountered a problem. I am trying to open a predefined CST file using Matlab code and then start running it. However,when I write code:
cst=actxserver('CSTStudio.Application');
mws=invoke(cst,'NewMWS');
invoke(mws,'OpenFile','<C:\Users\Romina\Desktop\di p.cst>');
it gives me this error while cst opens that: Unable to open file "dip.cst>"
What should I do?