Importing of Dxf(2d) file to part(3d) file in Solid Works

hello there, i am new in solid works. I would like to know how to scale a dxf file in solid works? I am able to import the dxf(2d) file to part(3d) file, but the measurements which i need is not able to get it. Even i cannot use scale option. Do you have any suggestions.

With Regards,

Anu Mathew

SolidworksComposer