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Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
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Hi @秀斗 松井 ,
Welcome to Microsoft Q&A!
If you can open the code file through clicking on “.vb” file, you can right-click in the code editor and select “View Designer” to open the designer window.
If it doesn’t work, please share us more details.
Sincerely,
Anna
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