To Add a File to an Import and Export Package

Follow these steps to add an import file to a data Import and Export package. Import files must be stored as a Microsoft Excel worksheet.

From the Import and Export Package page, select the package to which you want to upload files, from the list. The Data Import and Export package appears.
Select the Files tab, and then do one of the following:

From the Actions menu, select Upload.

or
If there are no files in the list, you can click Upload.

The Choose File to Upload dialog appears.
Browse to select the import or export file that you want to upload, and then click Open. The file is added to the package and appears in the list, for example:
Click Change to assign a mapping file to this import or export file. The Change Mapping dialog appears, for example:
Select a Mapping file from the list, and then click Save. The mapping file is associated with the data file.
Repeat Steps 2 to 5 for each data file that you want to add to an import and export package.

You can now export or import the data.