A daily updated filename extension database!

CSR file extension

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

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

✅ Certificate Signing Request

The CSR is a file containing a certificate application information, including the public key.
CSR format description not yet available
Category: Other files
Application: OpenSSL
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CSR aliases:
CSR related links:
CSR related extensions:
Certificate File

Key Database File

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

🚫 The .csr file extension is often given incorrectly!

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

ccr, cer, cr, crs, cs, csd, cse, csf, csg, cst, cwr, cxr, czr, dsr, fsr

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

CRiSP Macro File
Bentley GEOPAK XS List Report
Tekla Structures FabTrol Report
Visual C# .NET Class
Adobe Encore Color Set
ClearSilver Template File
JCAMP Chemical Structure Data
OpenSCAD Constructive Solid Geometry Model
Lemmings Paintball Data
Casio WK-3000 User Scale Memory

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

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