whenever I open docx file there is hidden file ~$name of file.docx created. which type of file is that? Is it in virus, maleware. for example If I open house.docx file then ~$house.docx file created which is hidden form. I had saw this file when i select show all hidden file option. when i try to open ~$house.docx file it show message the file is corrupted and cannot be open.please help.