您的资产在导出时使用的是Spine版本3.6.38。你需要将Spine改成相应的版本(通过 "设置-Spine版本"),然后选择 "导入数据..."。然后你可以保存Spine项目,并在任何更新的Spine版本中打开它。
但恐怕Spine试用版只允许使用最新版本。
Your asset has been exported with Spine version 3.6.38. You need to change Spine to the respective version (via Settings - Spine version) and then choose Import Data... You can then save the Spine project and open it in any newer Spine version.
I'm afraid the Spine Trial allows only using the latest version though.