In[1]:= Evaluate[
Table[{x[i], y[i]}, {i, 1, 5}]] = {{1, .1}, {2, .5}, {3, .7}, {4, 12}, {5, -3}}
Out[1]= {{1, 0.1}, {2, 0.5}, {3, 0.7}, {4, 12}, {5, -3}}
In[2]:= x[3]
Out[2]= 3
In[3]:= y[2]
Out[3]= 0.5
Watch out if you do that more than one time. You might look up Clear and Evaluation->Quit Kernel->Local->Quit