All about 1-C Files

The 1-C file type is primarily associated with Graphlib URT File.

1-CFile Extension 1-C
File extension: 1-C
File type:  Graphlib URT files

What is a 1-C file

1-C files mostly belong to Graphlib URT File. Use our "Online 1-C Text Viewer" below to analyze your 1-C file and to see all text it contains.

How do you open 1-C files?

You need a suitable software like Graphlib URT File to open a 1-C file. You need a suitable software like Graphlib URT File to open a 1-C 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 1-C file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a 1-C file directly in the browser:. Just drag the file onto this browser window and drop it.

Online 1-C Text Viewer

Choose your .1-c file to analyze

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Unable to Open a .1-C File? Quick Solutions:

1-C files can come from different programs and aren't universally openable.

  1. Identify the Source: If it comes from legacy graphics workflows, it may be a Graphlib URT File. If received from a developer, it might be custom temporary data.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
    • Readable XML/JSON suggests a standard data file.
    • "PK" indicates a renamed ZIP archive.
    • Binary gibberish implies a proprietary compiled graphic format.
  3. Use the Original Software: The original program is usually required; try Graphlib or Utah Raster Toolkit tools. If uncertain, ask the sender.
  4. Use this Webpage: Drag & drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for 1-C File Extension


a 1-c Graphlib URT file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with 1-C files

  • Associate the 1-C file extension with the correct application.
  • Update your software that should actually open Graphlib URT files. Because only the current version supports the latest 1-C file format. Search, therefore, e.g. on the manufacturer website after an available Graphlib URT File update.
  • To make sure that your 1-C file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .1-C file online - secure, fast, and no downloads needed.
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