What do your actions say about your business? And what IS marketing, anyway? Clive Birnie of Positive Churn argues that every decision and action communicates and is therefore Marketing.
As noted in a this post, one reason for installing uzERP is to get better information for key decision makers, many of whom like to use spreadsheets to carry out analysis or generate reports. This was also explored in a another post on csv files and LibreOffice Pivot Tables.