How to Recover an ASD File. A file with the file extension of ".ASD" is an automatically-saved backup file for a Microsoft Word 2002 or 2003 document. The Microsoft Office Word application ...

Learn how to recover unsaved Office Word document file version. The method is useful if you get far along & accidentally close the document before saving it.

There's a cool trick that can help you retrieve lost and unsaved Word documents by searching for .asd in the File Explorer under My/This PC.