CRYPT9 File Extension

CRYPT9 file icon
WhatsApp Messenger Encrypted Message Database Backup Format

What is CRYPT9 file?

CRYPT9 filename suffix is mostly used for WhatsApp Messenger Encrypted Message Database Backup Format files. Files with CRYPT9 extension may be used by programs distributed for Android, Blackberry mobile phones and devices:, iOS, Windows platform. CRYPT9 file belongs to the Encoded Files category just like 218 other filename extensions listed in our database. The most popular program for handling CRYPT9 files is Andriller, but users can choose among 9 different programs that support this file format. Software named Andriller was created by Andriller. In order to find more detailed information on the software and CRYPT9 files, check the developer’s official website.

Programs which support CRYPT9 file extension

Below you will find an index of software programs that can be used to open CRYPT9 files divided into 4 categories according to system platform supported. Files with CRYPT9 extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Updated: 10/17/2020

How to open file with CRYPT9 extension?

Problems with accessing CRYPT9 may be due to various reasons. What is important, all common issues related to files with CRYPT9 extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with CRYPT9 files.

Step 1. Download and install Andriller

Install software to open CRYPT9 file Problems with opening and working with CRYPT9 files are most probably having to do with no proper software compatible with CRYPT9 files being present on your machine. This issue can be addressed by downloading and installing Andriller or different compatible program, such as WhatsApp for iPhone, WhatsApp Phone, WhatCrypt Tools. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading Andriller installed is by going to developer’s website (Andriller) and downloading the software using provided links.

Step 2. Check the version of Andriller and update if needed

Update software that support file extension CRYPT9If you already have Andriller installed on your systems and CRYPT9 files are still not opened properly, check if you have the latest version of the software. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of Andriller installed, it may not support CRYPT9 format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Andriller.

Step 3. Assign Andriller to CRYPT9 files

If you have the latest version of Andriller installed and the problem persists, select it as the default program to be used to manage CRYPT9 on your device. The method is quite simple and varies little across operating systems.

Associate software with CRYPT9 file on Windows

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the CRYPT9 file
  • Select Choose another app → More apps
  • Finally select Look for another app on this PC, point to the folder where Andriller is installed, check the Always use this app to open CRYPT9 files box and conform your selection by clicking OK button
Associate software with CRYPT9 file on Mac

Selecting the first-choice application in Mac OS

  • By clicking right mouse button on the selected CRYPT9 file open the file menu and choose Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • Select Andriller and click Change for all...
  • Finally, a This change will be applied to all files with CRYPT9 extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the CRYPT9 file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the CRYPT9 file is valid. It is probable that the file is corrupted and thus cannot be accessed.

Check CRYPT9 file for viruses
1. The CRYPT9 may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the CRYPT9 is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. CRYPT9 file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the CRYPT9 file’s structure is intact

If the CRYPT9 file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with CRYPT9 extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open Andriller

The operating systems may note enough free resources to run the application that support CRYPT9 files. Close all running programs and try opening the CRYPT9 file.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with WhatsApp Messenger Encrypted Message Database Backup Format file. It is possible that one of the available system or driver updates may solve the problems with CRYPT9 files affecting older versions of given software.

Do you want to help?

If you have additional information about the CRYPT9 file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on CRYPT9 file.

Top File Extensions
Show more
File Extension of the day
moff icon


Sony Video Analysis Index Format

File with MOFF extension is an Sony AVCHD index file genereated by various digital cameras produced by Sony. MOFF files are used by Picture Motion ...