Import Excel into Table

I created a very simple php app to import a simple excel data sheet into 1 single table in my sql database. When I built it on my local windows 7 machine and ran it in chrome it worked fine. When I uploaded it into my Windows 2012 R2 IIS server, the import does not work. When attempting to do the import from the server (with import file being local) It does not show the data properly (shows many nulls and some strange characters). It does not see the data to be imported in this Excel file and will not import it.

Again, as I said - running locally on my windows 7 machine with iiexpress, works fine.

Any help?