[Back to Blog](/blog) # BimRv SDK Exports to JSON Files (Part 1 of 2)

Alexander Odnorog January 02, 2020 [\#rfa](/blog/tag/rfa) [\#rvt](/blog/tag/rvt)

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It’s common for ODA members to exchange data between multiple file formats, including both older and newer file formats. One example is using BimRv SDK to export .rvt/.rfa files to JSON format files. Using the TB\_JsonExport module, you can export the following:

- All parameters contained in ListParam for all objects in the model
- Hierarchy of objects in the model

The TB\_JsonExport module is used in the BmJsonExportEx sample application, which is a console application that demonstrates the export capabilities with the following startup parameters:

- Input file — .rfa or .rvt file (required).
- Output file — .Json file (optional).
- Element handle — OdDbHandle of an OdBmElement for export (optional).
- Flag — Use -p for exporting properties; use -h for exporting the object hierarchy. Must be the last argument (required).

The export example also works in the OdaBimApp sample application.

#### Exporting Parameters and Properties to a JSON Format File

To export parameters and properties:

1. Open OdaBimApp and load any .rvt file.
2. Choose File -&gt; Export Property To Json.
3. Select the path and name for the resulting .Json file.

![ODA BIM JSON](/files/inline-images/ODA%20BIM%20JSON.png)It is also possible to export parameters for one specific object:

1. Right-click the desired object in the Element Table.
2. Choose Export Property for this Element.
3. Select the path and name for the resulting .Json file.

![ODA BIM parameter for specific object](/files/inline-images/ODA%20BIM%20JSON%20export%20parameter%20for%20one%20specific%20object.png)You can also select one of the drawn objects in the Viewer:

1. Choose Vectorize.
2. Right-click the desired object.
3. Choose Export Property for this Element.
4. Select the path and name for the resulting .Json file.

![ODA BIM export parameter](/files/inline-images/BimRv%20export%20parameter.png)The result of exporting the parameters is a .Json file with this structure:

![JSON file with the structure](/files/inline-images/JSON%20file%20structure.png)The next article in this series will contain an example of exporting the hierarchy to a .Json file.

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