Crystal Reports Import data definition from ttx file

Message

   Hi,

I have a report where data fields are imported from a ttx file.
But the ttx file is missing. 

1. Is there a way to add a new data field to this report without the ttx file.
2. Or is there a way to export existing fields to a ttx file and import it again.
3. Another problem I face is that when I try to create a new ttx file from  Crystal Reports it says  "Cannot load Crddt32.dll"

Thanks in advance,
Chamal.