Microsoft excel saving information but not displayin on network folder
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I am experiencing a problem with Microsoft Excel and saving information over a shared folder on a network. I have 3 computers; Computer A, Computer B, and Computer C. All computers are running Windows 7 Professional. File Sharing and permissions are set to allow access for both computers. 

The folder with files is shared on Computer A; Computer B and C can read and write to the files within the folder. Computer B can write data to the files, and Computer can will display the changes to the file when loaded. However, when computer C writes data to the file, you cant see if on Computer A or B. Usually when someone is accessing the excel file, Excel displays a window with Read only, notify, and cancel options. When computer C accesses the file (while it is open on another machine) there is not prompt. This is very strange. Any ideas?

