File Extension Library


.C21 File Extension

  • Developer by: SINTEF
  • Category: Various data Files

What are .C21 files and how to open them?

Can't open .C21 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .C21 file.

What is a .C21 file extension?

.C21 file extension is created by SINTEF. .C21 has been classified as Various data Files.

.C21 is CARE-S InfoWorks defined pollutant detail file

The c21 file extension is associated with the CARE-S, this program was developed by SINTEF company. File contains details of user defined pollutant 2 attached to sediment fraction 1 mass concentration hydrographs. 


How to open:

Use CARE-S program to open files with c21 extension.

How to convert:

There is no known conversion for *.c21 extension files.

How to fix problems with .C21 files

  1. You need to update the application that you normally use to open .C21 files. Only the latest version of the software supports the current .C21 file format
  2. You need to check the .C21 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)