If /t is not specified, the output file will have the same format as the input file, or the default format if the input file is not indexed.
Parameters
| /t:btrv | Btrieve format | 
| /t:c-isam | C-ISAM format | 
| /t:cisam | C-ISAM format | 
| /t:lii | Level II V2.5 COBOL format | 
| /t:l2 | Level II V2.5 COBOL format | 
| /t:mf | IDXFORMAT"3" format | 
| /t:mf4 | IDXFORMAT"4" format | 
| /t:mf8 | IDXFORMAT"8" format | 
| /t:mf12 | IDXFORMAT"12" format | 
| /t:esds | ESDS format | 
| /t:xesds | Extended ESDS format |