# how to sage a file [closed]

I have Windows 10 installed and i can't sage a file example.sage which is in K:\sageexample
Tutorial is extremely bad and full of jargonisms and no examples in it. I don't know what does it mean to sage a file, or to run a file without example being given.
I open sage command prompt and type the following
run ('K:\sageexample\example.sage') but it returns
ERROR:root:File `u'(K:\\sageexample\\example.sagetex.sage).py'`

not found.
then i use load ('K:\sageexample\example.sage") it returns nothing at all.
I spent three days trying different combinations of syntax with no result.