Fluent file's 64 bit don't run on 32 bit
 

Hi,
sorry my English.
I used Fluent 12 64 bit , now the file (.cas .dat) running on 64 bit I want to run on Fluent 12 32bit.
When I opened the file , the program give me this error:
Error:CDR:invalid argument[1]:wrong type [not a pair].
Why?
Thanks.