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In order to connect a file from Box to Denodo, files must be in the data strategy drop folder. You can accomplish this by either uploading the file to a folder owned by the Denodo Box app (recommended, see Data Strategy Drop Folder) To share a file that is owned by a different service account with the Denodo Box App, in the Share dialog, use the email address provided under Creating a Box App and select Invite as Viewer (example below).
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Make sure you have the correct virtual database (VDB) selected in the top left corner of the VQL shell.
{CONNECTION_NAME} with the desired name for the Box file connection
{BOX_FILE_ID} with the ID of the file in Box (see step 3 in Step-by-Step).
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