Can't open mqxliff file despite seeing preview via file types.

Hello! 

I've been sent two mqxliff files to revise. I previewed them without a problem via File Types (in project settings), but when I try to import them into Studio, I get "Object reference not set to an instance of an object" (see attached stacktrace).

Is there a solution?

Many thanks,

Emma

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<SDLErrorDetails time="07/05/2025 09:05:19">
<ErrorMessage>Object reference not set to an instance of an object.</ErrorMessage>
<Exception>
<Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<HelpLink />
<Source>Sdl.ProjectApi.Implementation</Source>
<HResult>-2147467261</HResult>
<StackTrace><![CDATA[ at Sdl.ProjectApi.Implementation.Repositories.ProjectRepository.AddFileSettingsToProject(IProject project, ILanguageFile languageFile, Language targetLanguage, IProjectFile targetLanguageFile, LanguageFile xmlLanguageFile)
at Sdl.ProjectApi.Implementation.Repositories.ProjectRepository.SplitFileIntoTargetLanguage(IProject project, ILanguageFile languageFile, Language targetLanguage, IProjectFile& targetLanguageFile)
at Sdl.ProjectApi.Implementation.Project.SplitIntoTargetLanguage(IProjectFile sourceLanguageFile, Language targetLanguage, IProjectFile& targetLanguageFile)
at Sdl.ProjectApi.Implementation.Project.SplitIntoTargetLanguages(IProjectFile[] sourceLanguageFiles, SplitIntoTargetLanguagesProgressHandler progressHandler)
at Sdl.ProjectApi.AutomaticTasks.Split.SplitTask.ExecuteInternal()
at Sdl.ProjectApi.AutomaticTasks.Split.SplitTask.Execute()
at Sdl.ProjectApi.Implementation.AutomaticTaskExecuter.Execute()]]></StackTrace>
</Exception>
<Environment>
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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