.xlsm viewer - repost

We need a script that will allow us to upload excel files to our server and view them via a web browser, the formats we will be using most will be .xlsm and .xlsx We need to be able to view the entire excel files including the macros and allow the files to function the way they would in excel, we do not need the ability to make changes. There are several programs that already allow for some of this such as phpexcel but dont meet all of the requirements. This should be a pretty simple project for someone with skills in these areas.