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CIO file extension

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

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

Table of Contents

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

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

✅ SWAT Master Watershed Data

CIO file is a SWAT Master Watershed Data. SWAT (Soil Water Assessment Tool) is an hydrology model with the following components: Weather, surface runoff, return flow, percolation, evapotranspiration, transmission losses, pond and reservoir storage, crop growth and irrigation, groundwater flow, reach routing, nutrient and pesticide loading, water transfer.
CIO format description not yet available
Category: Data files
Application: SWAT
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CIO aliases:
CIO related links:
CIO related extensions:

SWAT Groundwater Input Data

SWAT Reach Output Data

SWAT Weather Generator Input Data

SWAT Watershed Water Quality Input

SWAT Stream Water Quality Input Data

SWAT Lake Water Quality Input Data

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

🚫 The .cio file extension is often given incorrectly!

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

ci, cii, cik, cil, cip, cko, clo, co, coo, cuo, dio, fio, ico, io, vio

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Draw.io Diagram Document
HP iPaq 914c Flash Data
iBlaze Case Information File
Windows Icon
Cult3D Object
Cisco IP Phone Image
CitectSCADA Data
Arabian Nights Game Data
Tajima Embroidery Data File
InPrint 2 Document

🔴 Can't open a .cio 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 .cio 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 .cio file extension, write to us!

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