The STAAD.Pro analysis and design application is owned by Bentley Systems, Incorporated. Full product details can be found on their website.
STAAD.Pro can export and import CIS/2 files, along with their std format. It has become a semi-industrial standard especially in the plant and heavy engineering segments.
If Tekla Structures and STAAD.Pro are installed on the same computer, then a direct link can be used.
Profile mapping for different installation environments is achieved by mapping the profiles used by Tekla Structures and Bentley in files called ProfileExportMapping.cnv and ProfileImportMapping.cnv located in the TeklaStructures\TS_STAAD folder. Currently these files are only used in import.
To get more information and to download, go to Tekla Warehouse.