A daily updated filename extension database!

C1D file extension

The table below provides useful information about the .c1d file extension. It answers questions such as:

  • What is the .c1d file?
  • What program do I need to open a .c1d file?
  • How can the .c1d file be opened, edited or printed?
  • How can I convert .c1d files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

0 extension(s) and 1 alias(es) found in database

✅ C1Report C1D Open XML Document

C1DX file is a C1Report C1D Open XML Document. ComponentOne Reports (C1Report) is a WinForms based control.
C1DX format description not yet available
Category: Document files
Application: C1Report
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
C1DX aliases:
C1DX related links:
C1DX related extensions:

Other types of files may also use the .c1d file extension.

🚫 The .c1d file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

1cd, c1, c1s, c1w, cd, cd1, cld, cwd, x1d

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

POV-Ray Include File
1C:Enterprise Platform Data
Cardwar Cards deck
Capture One Photo Cache Data
Vicon Nexus Unprocessed Data
Capture One Work Data
Steinberg WaveLab Basic Audio CD Project
Nightlong: Union City Conspiracy Game Data
STK City Database Main File
ClamAV Local Database

🔴 Can't open a .c1d file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .c1d file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .c1d file extension, write to us!

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