Inserting tabular data in form



I have been asked to see if our form, which we route by email, can support the pasting of a large amount of data from Excel into a cell. When I paste information in, of course it strips out the tabular formatting. Does anyone have any suggestions? It appears that attaching a file won't work without us investing in the server application. Do I need to just have users add new rows manually, instead of being easily able to paste in a large chunk of tabular data? Thanks!