My friend sent me his work in a zip file on USB. I opened the zip and started working on the DOCX file inside for around 4 hours. I kept on saving throughout the process but it did not ask me where i was saving to so i assumed it was saving to the Zip file on the USB. But then when i quit out from the zip file and closed every thing, a sign came up saying 'do u want to add the new files to the zip'. i accidently pressed 'no'. Now only the original file is on the zip. All my work is lost. Is there anyway to get the work back. Its an assignment tomorrow and i have to finish it.. plzplzplz help if u know.. thank you..