As Jenifer Sumn said, WINWORD is Microsoft's Word program
Winword.exe is a program and does not contain lists of doctors or any other user files.
If you have lost a file, try the Windows search and enter the name of one of the doctors in your list, in the word or phrase to search for and leave the filename empty.
It may take some time to search, but it should find the file you are looking for. (search in all drives).