This error is commonly encountered when file permissions are set so that you cannot accessthe file (read denied), or when ...

This error is commonly encountered when file permissions are set so that you cannot accessthe file (read denied), or when there is a read lock on the file that you are attempting to open. It is even possible that you do not have permissions to open anything within the drive or folder where the file is saved. In this case, contact the owner of the drive or folder and request permission to access the file.