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CT1 file extension

The table below provides useful information about the .ct1 file extension. It answers questions such as:

  • What is the .ct1 file?
  • What program do I need to open a .ct1 file?
  • How can the .ct1 file be opened, edited or printed?
  • How can I convert .ct1 files to another format?

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

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

✅ Microsoft SMS Proposed Site Control Data

Microsoft SMS Proposed Site Control Data .ct1 file icon
CT1 file is a Microsoft SMS Proposed Site Control Data. Microsoft's Systems Management Server is a comprehensive set of tools designed to aid system administrators in managing large scale deployments of Windows. SMS features an integrated centralized management scheme with support for heterogenious client environments.
CT1 format description not yet available
Category: Data files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CT1 aliases:
CT1 related links:
CT1 related extensions:
Microsoft SMS Instructions

Microsoft SMS Offer File

Microsoft SMS Lookup File

Microsoft SMS Distribution Manager Package

Microsoft SMS Package

Microsoft SMS Collection Membership Update

Microsoft SMS NHM Data

Microsoft SMS Previous Log Data

Microsoft SMS Control Data

Microsoft SMS Data

Other types of files may also use the .ct1 file extension.

🚫 The .ct1 file extension is often given incorrectly!

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

c1, cf1, ch1, cr1, ct, ctl, ctw, dt1, ft1, st1, t1, tc1

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Lotus Freelance Graphics Chart
Macromedia Freehand Template
EAGLE Autorouter Control Data
Visual Basic User Control Text
Male MRI Image
CRBasic Source
DigiTitle Master Subtitle
Stepmania Package Description
AGPS-Shape Pro Control Points Data
Silicon Graphics Iris Cliptexture

🔴 Can't open a .ct1 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 .ct1 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 .ct1 file extension, write to us!

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