File Extension Library


.REQ File Extension

  • Developer by: Canon
  • Category: Misc Files

What are .REQ files and how to open them?

Can't open .REQ 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 .REQ file.

What is a .REQ file extension?

.REQ file extension is created by Canon. .REQ has been classified as Misc Files.

.REQ is Canon SD Card Version Request File

Empty file sometimes stored on Canon digital camera SD cards; saved with the filename ver.req and used for reporting the firmware version on the camera when the user holds the FUNC/SET button and presses the DISP button.

You can manually create the ver.req empty file by saving a blank document in Microsoft Notepad and renaming the filename to ver.req.

List of all softwares that can open the Canon SD Card Version Request File
Windows
Microsoft Notepad
File Type 2 SSL Certificate Request File
Category: Misc Files

A REQ file is a file used in the process of setting up a digital certificate. It stores a Certificate Signing Request (CSR), which includes information that uniquely identifies the initiator of the request. REQ files are sent to trusted entities (certificate authorities) who use the requests to generate valid digital certificates for the requesters.

CSRs are used in the process of public key cryptography, which is used to validate identities on the Internet. Digital certificates validate the authenticity of a company or merchant online so users or customers can know that the website is trustworthy and secure.

List of all softwares that can open the SSL Certificate Request File
Windows
Microsoft Exchange Server
OpenSSL
Mac
OpenSSL
Linux
OpenSSL

How to fix problems with .REQ files

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