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GD_145786303-Newcomer
3-Newcomer
May 6, 2026
Question

installation license problem: invalid file or format

  • May 6, 2026
  • 10 replies
  • 326 views

I’m trying to install Creo Parametric with a student license, but while the code I was given generates a Success, the installation tool doesn’t recognize the license created and gives the error “invalid file or format”. I checked the .dat file created with the Notepad app, and it’s indeed empty. I haven’t received a mail with the license, as other threads suggest, so don’t really know what to do

    10 replies

    A
    AG_133809443-Newcomer
    3-Newcomer
    May 6, 2026

    Same issue 

    A
    AY_145791025-Regular Member
    5-Regular Member
    May 6, 2026

    same..

    V
    24-Ruby III
    VladimirN24-Ruby III
    24-Ruby III
    May 7, 2026

    Take a look:

    K
    KT_145789133-Newcomer
    3-Newcomer
    May 7, 2026

    The problem is the .dat file is empty, nothing to change here, is it some sort of server error?

      A
      AG_133809443-Newcomer
      3-Newcomer
      May 8, 2026

      Seems like it, and its the same when trying to install any version of CREO right now.

      D
      DV_145700444-Participant
      4-Participant
      May 8, 2026

      Hi,

      I believe it's a general server issue, because it's unable to generate the license. I tested both Creo 11 and Creo 12, and both reported the same problem. Initially, I thought it was the educational license, so I also tested another license, but the error persists.

        A
        AOGURA5-Regular Member
        5-Regular Member
        May 12, 2026

        I'm also getting an empty license file.
        When I contacted PTC support, they said student versions aren't supported.
        That's true, but this isn't something the user can fix.
        Please help! 

        M
        ML_145819114-Participant
        4-Participant
        May 12, 2026

        Been trying for a few days now and exactly the same problem. Empty license file.

        D
        DV_145700444-Participant
        4-Participant
        May 13, 2026

        Hi,

        I think it's back to normal. I tested it on three machines and it worked correctly, so I believe the problem has been resolved.

          A
          AOGURA5-Regular Member
          5-Regular Member
          May 14, 2026

          That's nice.
          I was also able to obtain the correct license file.
          This should reduce inquiries from students.

          Catalina
          CatalinaCommunity Manager
          Community Moderator
          May 14, 2026

          Hi ​@GD_14578630 

           

          I wanted to see if you got the help you needed.

           

          If so, please mark the appropriate reply as the Accepted Solution or please feel free to detail in a reply what has helped you and mark it as the Accepted Solution. It will help other members who may have the same question.

           

          Of course, if you have more to share on your issue, please pursue the conversation.

           

          Best regards,

          Catalina

          PTC Community Moderator

          Catalina | PTC Community Moderator
          M
          ML_145819114-Participant
          4-Participant
          May 14, 2026

          Tried it and still does not work for me.

          M
          ML_145819114-Participant
          4-Participant
          May 16, 2026

          Works now

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