File extension REQ
| File type | SSL Certificate Request Format |
| Developer | N/A |
| Ads |
What is a REQ file?
File format with .REQ extension contains information uniquely identyfing the entity requesting lease of digital certificate in the form of CSR (Certificate Signing Request) data. This format is used as a part of cryptographic processing of public keys used as a means of identyfing users and machines on the internet.
REQ files are used in the process of creating digital certificates. Certification authority, after receiving such request file, uses it to generate digital certificate and issues it to the user requesting the certificate.
Program(s) that can open the .REQ file
How to open REQ files
If you cannot open the REQ file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports REQ among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the REQ file can be found in the table. Now just download and install the appropriate application.
Possible problems with the REQ format files
The inability to open and operate the REQ file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the SSL Certificate Request Format file. Below is a list of possible problems.
- Corruption of a REQ file which is being opened
- Incorrect links to the REQ file in registry entries.
- Accidental deletion of the description of the REQ from the Windows registry
- Incomplete installation of an application that supports the REQ format
- The REQ file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the REQ file.
- Drivers of equipment used by the computer to open a REQ file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the REQ file should operate with your programs without any problem. If the problem with the REQ file has not been solved, it may be due to the fact that in this case there is also another rare problem with the REQ file. In this case, the only you can do is to ask for assistance of a professional staff.
Similar extensions
| .aawdef | Ad-Aware Definitions Format |
| .abr | Adobe Photoshop Brush Format |
| .ac$ | AutoCAD Undo Info Format |
| .acc | DR DOS - ViewMax Format |
| .acl | Microsoft Office Automatic Correction List |
| .acs | Microsoft Agent Character Structured Storage Format |
| .ad | After Dark Screen Saver Format |
| .add | Microsoft Dynamics AX Developer Documentation Format |
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.REQ) you have two ways to do it. The first and the easiest one is to right-click on the selected REQ file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the REQ file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. REQ) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.