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Home > Supported File Formats > STEP to Softimage|XSI


How to convert STEP (.step,.stp) to Softimage|XSI (.xsi)?


PolyTrans|CAD+DCC performs mathematically precise CAD, DCC/Animation, GIS and BIM 3D file conversions into all key downstream 3D packages and file formats. Okino software is used and trusted throughout the world by many tens of thousands of 3D professionals in mission & production critical environments, backed by respectable personal support directly from our core development team.

     

STEP

STEP is the defacto 'go-to' MCAD translation file format when you do not have access to the original CAD part and assembly files. It is a long standing 'industry standard' that can be used to move MCAD/CAD file assets into many downstream 3D programs and file formats. Okino's PolyTrans|CAD provides for a defacto 3D STEP file conversion solution used by the world's primary & professional engineering, aerospace, military, corporate, animation/multi-media and VR/AR industries. STEP uses the .stp and .step file extensions.

STEP files are readable ASCII files which encode CAD parts and assembly information. Most respectable MCAD modellers will actively and correctly support the STEP AP203 and AP214 file formats. STEP was originally developed to supercede the IGES file format but has mostly supplemented but not replaced IGES. You would either want to export a "STEP AP214" file or an "IGES BREP solids" file depending on the MCAD modeller.

A much deeper overview plus explanation of STEP, and how it can be best used + understood, is outlined in this Okino WEB page.

Most people initially come to Okino asking for a STEP importer but it should only be used in specific situations as outlined in our "CAD Data Sourcing Suggestons and Rules".

     

Softimage|XSI

Softimage|3D and Softimage|XSI were two well known 3D animation systems written by Softimage Inc. of Montreal Canada. Autodesk eventually came to buy the company in 2008 and then kill off the software in 2014.

Okino had a very long standing relationship with Softimage and its software, having written the main import/export converters for both Softimage|3D and Softimage|XSI in the 1990s.

Conversion to/from Softimage|3D was done with the .hrc and .dsc file formats which are now considered obsolete. In simple terms, you would need to get a running version of Softimage|XSI v7.x on your Windows machine in order to read in older .hrc and .dsc files.

Conversion to/from Softimage|XSI was done with the .xsi v3 and v5 file formats which are still supported in Okino software.