All about UDC Files

The UDC file type is primarily associated with SAP GUI.

UDCFile Extension UDC
File extension: UDC
File type:  specialized data container

What is a UDC file?

UDC files mostly belong to SAP GUI. UDC files are not a single type of file. They serve different functions depending on the software that created them.
  • SAP Documentation Files: These files are used in SAP environments. They store user data and documentation content. Some of these files are compressed (using ZIP) and used in SAP GUI for Windows or SAP Enable Now. More details can be found on the SAP Support site.
  • Amateur Radio Contest Files: Some UDC files are used by contest logging software like N1MM Logger+ or UCXLog. They keep configuration settings for radio contests. Information is available at N1MM Logger+.
  • Vocaloid Dictionary Files: Other UDC files are used by the UTAU program. They are dictionary files encoded in UTF-16 (LE) that hold data for vocal synthesis.
  • FilExt.com note: To open or view a UDC file, use the software that originally created it or a compatible text or archive editor if the file is in a compressed or text format.

    How to open UDC files

    You need a suitable software like SAP GUI to open a UDC file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your UDC file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a UDC file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online UDC Text Viewer

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    Programs that open and convert UDC files:

    1. SAP GUI
      See the previous paragraphs to learn more about the main application. UDC files are often referred to as SAP GUI data files because this type of file is primarily created or used by this software.
    2. Acrobat (Spelling File) by Adobe Systems Incorporated
      Adobe Acrobat is a family of computer programs developed by Adobe Systems, designed to view, create, manipulate and manage files in Adobe's Portable Document Format (PDF). Some software in the family are commercial, and some are free. Adobe Reader (formerly Acrobat Reader) is available as a no-charge download from Adobe's Web site, and allows the viewing and printing of PDF files. Acrobat and Reader are widely used as a way to present information with a fixed layout similar to a paper publication.
    3. Fh5 US English File
    4. Systems Management Server (SMS) (Collection Evaluator Updates Collection) by Microsoft Corporation
      With SMS you can provide your organization a change and configuration management solution to deliver relevant software and updates to users of Microsoft and third-party applications.

    Technical Data for UDC File Extension

    File classification:
    Data
    Related files:
    udf, dic, uedc, ucd, txt, exe, zip, u3d, fdf, env, cfg, xml

    The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

    ProgramID: AcroExch.Spelling

    ProgramID: InDesign.User Dictionary, FileType: InDesign User Dictionary

    ProgramID: Proximity.Dictionary
    EXEFile: %ProgramFiles%\Adobe\PageMaker

    ProgramID: Proximity.Dictionary
    EXEFile: C:\PM65\EXTRAS\TEXTdeapp.exe%1

    ProgramID: Proximity.Dictionary
    EXEFile: C:\PM65C\EXTRAS\TEXT\deapp.exe %1

    ProgramID: Proximity.Dictionary
    EXEFile: %ProgramFiles%\Adobe\PageMaker 7.0\Extras\Text\deapp.exe %1

    ProgramID: Proximity.Dictionary
    EXEFile: %ProgramFiles%\Adobe\PM65\EXTRAS\TEXTdeapp.exe%1

    ProgramID: Proximity.Dictionary
    EXEFile: E:\PM65\RSRC\USENGLSH\Utility\deapp.exe %1

    ProgramID: Proximity.Dictionary
    EXEFile: %ProgramFiles%\Adobe\PageMaker 7.0 Tryout\Extras\Text\deapp.exe


    a udc specialized data container is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with UDC files

    • Associate the UDC file extension with the correct application.
    • Update your software that should actually open specialized data containers. Because only the current version supports the latest UDC file format. Search, therefore, e.g. on the manufacturer website after an available SAP GUI update.
    • To make sure that your UDC file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
    • Click here to open your .UDC file online - secure, fast, and no downloads needed.
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