EVX File Extension

EVO Record
- File Type evx
- Developer Caltech
- Popularity
- Application EVO Koala Client
- Category Audio Files
- Format Text
What is a EVX file?
EVO Record, identified by the EVX extension, is a Audio Files type and includes 667 files.
With the creation of the EVO Record (EVX), Caltech introduced file format along with 2 programs built for their use.
EVX files are supported by Windows. You can play a EVX file using one of 2 programs, for example EVO Koala Client and EVO Recording Player.
How to open a EVX file?
The most common reason why a EVX file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
The most popular programs for working with EVX files are EVO Koala Client and EVO Recording Player. To get the latest version of EVO Koala Client, open the Caltech website where a universal installer for all operating systems is available.
Once setup is done, your operating system should assign EVO Koala Client as the default app for EVX files.
Make EVO Koala Client the default EVX viewer
Changing the default program in Windows
- Start by right-clicking on your EVX file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- Inside the popup window, scroll through the list of applications and specifically choose EVO Koala Client as the application to associate with your EVX file;
- Check the "Always use this app" checkbox and click "OK".
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired EVX file to access a dropdown menu of actions;
- Select "Open in application" and click "Other";
- Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
- In this menu, choose "All Programs" and navigate to EVO Koala Client. Check the box next to "Always open in app" to make it the default program.
Finding answers to EVX file problems
If you encounter issues with EVX files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.
What are the signs that my EVX file is damaged?
Corrupted EVX audio files may have one or more of the following symptoms:
- Opening or processing the file in EVO Koala Client or other programs causes instability or crashes in the program;
- The file shows errors when trying to open it or does not open completely;
- Unexpected expansion of the total size of the EVX file;
- Working with the file triggers the display of error messages;
Why does EVO Koala Client quit or crash unexpectedly?
EVO Koala Client crashes can be attributed to outdated software. Make sure you have installed the latest updates for Caltech products.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
What methods can be used to repair a damaged EVX file?
Use a recovery program to open the damaged EVX file and navigate to the "Repair" menu item. Wait for the recovery process to finish, as it will automatically repair damaged audio files.


