# How to combine multiple original files to generate a scz file

**URL:** <https://forum.techsoft3d.com/t/how-to-combine-multiple-original-files-to-generate-a-scz-file/5014>\
**Category:** HOOPS Exchange\
**Tags:** how-to\
**Created:** [November 26, 2025, 2:46am UTC](https://forum.techsoft3d.com/t/how-to-combine-multiple-original-files-to-generate-a-scz-file/5014 "2025-11-26T02:46:41Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![tino](https://avatars.discourse-cdn.com/v4/letter/t/9dc877/32.png) [@tino](https://forum.techsoft3d.com/u/tino)\
**Post date:** [November 27, 2025, 4:19pm UTC](https://forum.techsoft3d.com/t/how-to-combine-multiple-original-files-to-generate-a-scz-file/5014/4 "2025-11-27T16:19:50Z")

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In Exchange, it is possible to combine multiple models as described in this forum post:

> [@How-to: Combine multiple models with different unit](https://forum.techsoft3d.com/t/how-to-combine-multiple-models-with-different-unit/2633):
>
> To combine multiple models which are defined in different unit to a prc file, you can create a product occurrence with scale for [A3DAsmProductOccurrenceData::m\_pLocation](https://docs.techsoft3d.com/exchange/latest/api/structA3DAsmProductOccurrenceData.html?highlight=A3DAsmProductOccurrenceData::m_pLocation#_CPPv4N27A3DAsmProductOccurrenceData11m_pLocationE), to display the model in the same unit. // specify input file A3DImport sImport1(acSrcFileName1); // model in millimeter A3DImport sImport2(acSrcFileName2); // model in meter // specify output file A3DExport sExport(acDstFileName); A3DStatus iRet; A3DAsmModelFileData sModelFileData; // import #1 iRet = sHoopsExchangeLoader.I…

Now, once combined, you can generate a PRC and from that, you can generate a single SCZ file.

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