Excel files can be more complicated than Word documents due to the possibility of having multiple sheets, lookups, hidden sheets, and so on.  When TurnItIn receives an Excel file it has to “understand” it in order to process it.

This can sometimes cause problems and so we have created a web page with guidance on successfully submitting Excel files to TurnItIn, you can read it here:

Advice on submitting Excel files to a TurnItIn assignment.