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 ...

Sometimes, when you try to open a Word file it fails to open and displays the following message – Word cannot open the file because the file format does not match the file extension.

Look for and open a folder with the name of your document. You can open the ASD file itself in Word, or more easily click on the shortcut with the docx extension to open the recovery file (Figure G).

Option 4: Recover from Temporary Files While you work, Word creates “.tmp” (temporary) files that you can manually search to find a copy of your unsaved document.

The easiest way to recover an unsaved Word document is probably to just open up Word again. Here's when to do that, when not to, and how to find the lost docs.

Once you find any Word file with the .asd extension, head back to Microsoft Word and click on the File option at the top and select the Open and Browse tabs.

If you see The Document Recovery task pane contains some recovered files that have not been opened, every time you launch Word, PowerPoint or Excel, see this post.