I cant open the file due to an error when i set the dump file format to double precision

The previous Analyse version could not load double precision dump files. Copy the rdump.exe utility to your working directory and convert the file to single precision. The utility is located under the /bin/4.4 subdirectory of CFX-4. Another way is to switch the command file to single precision and restart your run from the double precision dump file performing only 1 iteration.
cfd guy