ZEDI can import data from spreadsheets and map it to produce whatever file type is required by your business systems. ZEDI can also produce spreadsheets by mapping data originating in any machine-readable format.
Spreadsheets generated by ZEDI can be designed to include empty columns for the recipient to complete. That spreadsheet can then be returned to ZEDI for processing.
A good example of this would be an order sent to a supplier. The spreadsheet would have a column containing the order quantity for each item, plus another empty column for the dispatch quantity. The supplier completes the dispatch quantity column and returns the spreadsheet to ZEDI. This information is then mapped so that the dispatch quantities can be passed back to your business systems.