@ FLOOD Error message attached I was able to save excel files. I was using AVG free anti virus earlier. At that time also this sharing error appeared. As excel was showing it may be a problem with antivirus, I thought to buy a fully functional and bought Kaspersky. Uninstalled AVG and installed Kaspersky. Still the same error message appears. But some times, it gets saved without an error message as well. But most of the times its not saving. I am not able to save it in a different name also. It persists even I paused Kaspersky The sharing wizard is ticked. And Now, I tried renaming my file and it vanished. I am not able to retrieve it. Please help. I am not an expert in computers