We have a few Excel 2010 documents on our SharePoint Foundations website. Each week we notice duplicates of those files in various places throughout our Shared Folder directory on our server. I asked if people were "Checking Out" the files and they are not, only opening them to make changes. There is also a built in timer in the spreadsheets that will close the documents after 60 mins due to some people leaving them open and locked to where others cannot get into them and make changes. I cannot seem to figure out how these files are being saved into the servers shared directory. When people make changes and save the spreadsheets, is it not just saving back to SharePoint, or is it creating two saves? I'm really stuck at this point. Any help would be greatly appreciated, Thanks!