56. A system as in claim 53 , wherein the control file is created by the following steps: i) by using a user interface for a spreadsheet loader, selecting the business object in an object tree section of the user interface, wherein the selection of the business object opens a list of attributes for the selected business object in an attributes tab section of the user interface; ii) dragging and dropping the attributes for the selected business object into columns of a spreadsheet data area of the user interface, the spreadsheet data area reflecting a spreadsheet dataset that is to be loaded by the spreadsheet loader; iii) using the drop and dragged attributes, mapping the columns into which the attributes were dragged to the business objects of the dragged attributes; iv) generating a control file reflecting the mapping step a)(iii).
66. A system as in claim 56 , wherein the object tree displays a two-tier hierarchy, with a list of sub models, being groups of business objects, with business objects under each sub model.