I'm trying to import ST9 part file into ANSYS Workbentch r18.1,but it encountered below error ,according to the ansys helper ,ST9.par should be a supported file format. May you any suggestions for this case ?
Having no idea of how you intend to use the imported part in Ansys, if any features, etc. are required downstream, the part can be exported from Solid Edge in a neutral format like Parasolid and imported into Ansys - as a workaround.
Do you face this problem with just a specific file or other ST9 files as well ?
In that case, you need to send the ST9 part to Ansys support to investigate why it won't import.
Lastly, for a 'fatal error' kind of error, check if cleaning the %TEMP% folder followed by a computer reboot solves the issue.