Every time i try to import the file it tells me the file is invalid or unsupported, i am hoping to use this to help me with some uni work, if anyone could help me out and let me know how to import it or if somebody could send me it as a .DWG it would be much appreciated.
Invalid or unsupported leads to the conclusion that the file is created in a version of SolidWorks that is not supported by your AutoCAD version (version ?).
However, to convert the file you also need the files with the parts that belong to the given assembly. The sldasm only is not enough information for a successful conversion. So you should ask the creator of the model if he is willing to send the part files or export to STEP, IGES, ...
Well that absolutely sucks but thankyou for your quick reply, I'll have to try and see if either of the people that have posted the drawing can export it as STEP