KNT File Extension

KeyNote Note Format
- File Type knt
- Developer KeyNote
- Popularity
- Application Keynote
- Category Document Files
What is a KNT file?
KeyNote Note Format, identified by the KNT extension, is a Document Files type and includes 969 files.
KNT file support extends to various operating systems, including Windows. When working with KNT files, you can rely on 2 programs, including Keynote and RightNote.
How to open a KNT file?
If you can’t open a KNT file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
When it comes to opening and working with KNT files, Keynote and RightNote are the top choices for users. To install the updated version of Keynote, simply go to the Marek Jedlinski site and download the installer compatible with all major platforms.
Once the process is complete, Keynote should take over as the default application for KNT files.
Set Keynote as the default KNT program
Changing Default Programs in Windows
- Right-click on your KNT file, then choose the "Open with" option and select "Choose another application" from the available options;
- In the pop-up window, select the Keynote application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening KNT files.
Change Default Program on Mac
- Right click or Control + left click on the desired KNT file;
- Select "Open in application" and click "Other";
- At the bottom of the window, you will find the "Enable" menu. Default, will be set to "Recommended Programs";
- Choose "All Programs" in this menu and search for Keynote. Check the box next to "Always open in app" to make it the default program.
Solve problems with KNT files
Rest assured, any issues with KNT files can typically be addressed with simple software adjustments. See the tips below for help.
Why does Keynote stop responding or crash intermittently?
Keynote crashes can be caused by outdated software. Keep your Marek Jedlinski products up to date by installing the latest updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
What are the best practices for repairing a KNT file that has gone bad?
Use a data recovery program to open the damaged KNT file and from the menu choose "Repair" function to start the repair process. Allow the recovery process to complete, which will automatically repair the damaged document files.
What are the warning signs that my KNT file may be corrupted?
Common indications of damaged KNT document files are:
- Error messages appear during the course of working with the file;
- Editing the archive in Keynote results in slow or unresponsive behavior;
- Opening the file results in an error or a failed attempt;
- Unexpected expansion of the total size of the KNT file;
- Opening the file in Keynote or other programs causes them to hang or crash;
How to edit a KNT file?
To edit KNT files, it is essential to install software that supports not only viewing but also editing the document files. Online KNT editors provide limited functionality compared to full-featured software for KeyNote Note Format.
List of Top KNT editors 2026
Based on the criteria above, here is a selection of KNT editors you can use.
| KNT Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Keynote | Marek Jedlinski | Mac OS, Apple iOS, Windows | 4.4 out of 5 (40 reviews) |
Convert to and from KNT
If obstacles arise while working with a KNT file, you may convert it to formats like DOC or other similar types for smoother handling.
Keep in mind that converting a KNT file may introduce some limitations, but the original format can often be restored.


