Export files SAPxxx.001 checksum

Hi experts,

I have done some test on my system ecc 6.0 oracle 10.2, 4 TB db size. My exported files are about 450 MB.

I have to move those files to another city and then do the import, I would like to know if there any SAP utility to checksum those exported files SAPxxx.001 'cause I would not like to get the R3load error "ERROR: invalid checksum in data file"

Is there any way to sun R3load with those exported files just to checksum?

Or any other SAP program?

Regards