You're here because you have a file that has a file extension ending in .yam. Files with the file extension .yam can only be launched by certain applications. It's possible that .yam files are data files rather than documents or media, which means they're not meant to be viewed at all.

The .yam file extension is used by Yahoo! Seller's Manager because it is used to refer to data files that the program created. Yahoo Seller’s Manager is a Yahoo! Auctions program mainly allowing users to manage their desktop auction properly. This software is known as E-Bay’s competitor and it is very convenient for users who want to establish an auction site online. They contribute a lot to the quick and effective creation and management of auctions. This software allows the tracking and managing of auctions even without internet connection. In just a few seconds, users can create listings of auctions in their desktop already as well as allows the submission of these listing by batch as soon as they are ready. Now, the yam files that are created by this software are responsible for saving this auction information that usually contains the items for sale, the item categories as well as information about the seller.

Launch a .yam file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .yam file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .yam files aren't yet associated with it. In this case, when you try to open a .yam file, you can tell Windows which application is the correct one for that file. From then on, opening a  .yam file will open the correct application. Click here to fix .yam file association errors

Be careful not to rename the extension on .yam files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .yam. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.