我印象中，NX2206还是哪个版本，转换STP确实有点问题的，你可以升级到NX2206.8000版本或者更新的补丁试一下。
升级到NX2206版本无法打开STP文件，同样文件NX12.0可以打开
报错日志如下，求大神帮忙！！
STEP to UG
! INFO- NX STEP AP214 - V2206.1700
! INFO-
! INFO- Start of Translation: 28-APR-2023 10:48:10 AM
! INFO-
! STATUS- Converting Part: \\tsclient\C\1\2100010-DQ02-D.stp
! ERROR- Some type of AP rule or Part 21 syntax violation
! ERROR- encountered with STEP file. Make sure FILE_SCHEMA
! ERROR- name is correct. Unable to continue processing.
! INFO-
! INFO- End of Translation: 28-APR-2023 10:48:10 AM
! INFO-
STEP to UG
! INFO- NX STEP AP214 - V2206.1700
! INFO-
! INFO- Start of Translation: 28-APR-2023 10:54:55 AM
! INFO-
! STATUS- Converting Part: \\tsclient\C\1\2100010-DQ02-D.stp
! ERROR- Some type of AP rule or Part 21 syntax violation
! ERROR- encountered with STEP file. Make sure FILE_SCHEMA
! ERROR- name is correct. Unable to continue processing.
! INFO-
! INFO- End of Translation: 28-APR-2023 10:54:55 AM
! INFO-
