Use the /l option when you are loading to and unloading from IDXFORMAT 9 files.
For loading, you need to define the record size and key definition (one key only).
All records must be the key order of the target file and there must be no records which result in duplicate keys.
You do not need to define the record size and key definition for unloading.
Parameters
Examples
rebuild /l:r9 file1, file2 /k:1+10 /r:v20-30
This example loads a record sequential file to an IDXFORMAT 9 file, with the key structure specified by the /k option and the recording mode and record lengths specified with the /r option.
rebuild /l:9r file1, file2
This example unloads an IDXFORMAT 9 file to a record sequential file.