File Extension Library


.CIO File Extension

  • Developer by: Grassland, Soil & Water Research Laboratory
  • Category: Various data Files

What are .CIO files and how to open them?

Can't open .CIO 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 .CIO file.

What is a .CIO file extension?

.CIO file extension is created by Grassland, Soil & Water Research Laboratory. .CIO has been classified as Various data Files.

.CIO is SWAT master watershed data

The cio file extension is associated with the SWAT (Soil & Water Assessment Tool) program for Microsoft Windows.

The cio files are containing names of watershed level files and parameters related to printing.


How to open:

Use SWAT to work with *.cio files.

How to convert:

Conversion to other formats is not possible.

How to fix problems with .CIO files

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