# Structure of Exported Files: Data Source Files

__*Dumpling export data format*__
__*Dumpling data file*__

+ **`{schema}.{table}.{nnnnnnnnn}.sql|csv`**: The data source file
```
$ cat universe.stars.000000000.~!@sql@!~ 
/*!40101 SET NAMES binary*/;
~!@INSERT INTO@!~ `stars` VALUES
(288230376151711745,'Sun',1988500,1408,274.0000,617.6,4260,'G2 V',0.0000158,NULL),
(7782220156096217090,'Proxima Centauri',244600,56800,0.0520,NULL,NULL,'M5.5 Ve',4.426,'1915-01-01 00:00:00');

$ cat universe.stars.000000000.~!@csv@!~ 
"id","name","mass","density","gravity","escape_velocity","mass_conversion_rate","spectral_type","distance_from_earth","discover_date"
288230376151711745,"Sun",1988500,1408,274.0000,617.6,4260,"G2 V",0.0000158,\N
7782220156096217090,"Proxima Centauri",244600,56800,0.0520,\N,\N,"M5.5 Ve",4.426,"1915-01-01 00:00:00"
```

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