フォーラムにcdrファイルをアップロードする方法

I have a .cdr in the FAQ in the list of files that can be attached to forum posts, but when I upload it, it shows Error in red.error photograph

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  • 411AING.zip

    Thank you for your reply.
     I see that I can upload it as a zip file.
    Actually, the uploaded file (411NG.cdr) does not seem to be able to be displayed in Adobe illustrator. the Corel version is 2023.
    I exported the file as AI and sent it to my business partner, but they replied that they cannot see it, so I am having trouble.
     Of course, I can open and edit the file in Corel, but not in Adobe. I have contacted support, but so far they have not been able to find the cause of the problem. (I'm not sure if it's the export method or not.)
    Do you know the cause of this problem?
    By the way, is there any way to export as PDF compatible in Corel?

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