Here's a short example of the usage of the Google Viewer and Google Docs embeds (see here). If you want to embed a view of any file on Google Drive/Docs you can do this by putting a pdf preview (the file could be in any format, see first example, which is a Google text document) in an iframe or, in the case of spreadsheets, the speradsheet itself into an iframe.
The second embed below shows the latest outcome of an online questionnaire and in the speradsheet that holds the result the new answers to the questoinnaire are updated every 5 minutes after refreshing the view. So, you can, i.e., make an online questoinnaire with a Google form and display the results like below. With a little tweaking of the parameters, which I obviously haven't done yet, the result would of course be more visually appealing.
If you try for one of your files you just need to replace the id/key in the URL:
<iframe src="https://docs.google.com/viewer?url=https://docs.google.com/document/d/125CJmmlBfy7UgfYuBAmb1_HSCuyz8NV133361KTK1SE/export?format%3Dpdf&id=125CJmmlBfy7UgfYuBAmb1_HSCuyz8NV133361KTK1SE&embedded=true" style="width:680px; height:860px;" frameborder="0"></iframe> <iframe src="https://docs.google.com/spreadsheet/pub?key=0AmwAunwURQNsdFplUTBZUTRLREtLUDhabGxBMHBRWmc&embedded=true" style="width:680px; height:300px;" frameborder="0"></iframe>