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 # open

 Last update: 16.07.2026 

<a id="compolyx.DB.open"></a>

## DB.open(path, \*, pre\_db=None, unit\_system\_type=None, apply\_shared\_commands=False)

Open an ACPH5 file.

### Parameters

- path: File path to the ACPH5 file.
- pre\_db: Indicates whether a pre-database is opened from within a : post-database. Used for Workbench application integration 14.
- unit\_system\_type: Defines the unit system of the main/downstream ACP file.