To attach document to an asset,
Log in to AssetExplorer application using your user name and password.
Click the Assets tab in the header pane, this opens the assets home page -> select the IT Assets link on the left hand side of the page.
From the IT Assets list view page -> click the title of the asset to be attached with an document. This opens the asset details page.
Click the Actions combo box -> select the Attach Documents option from the list. This opens the Attach File pop up.
Click the Browse button to select a file.
On selecting the file, click Attach button to attach the document.
Note: You can attach any number of files up to 3 MB.