KNM file icon

KNM File Extension

KeyNote Data Format

What is KNM file?

KNM filename suffix is mostly used for KeyNote Data Format files. KNM files are supported by software applications available for devices running Windows. KNM file belongs to the Misc Files category just like 6033 other filename extensions listed in our database. Keynote is by far the most used program for working with KNM files. On the official website of Marek Jedlinski developer not only will you find detailed information about theKeynote software, but also about KNM and other supported file formats.

Programs which support KNM file extension

Below is a table that list programs that support KNM files. KNM files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support KNM file

Windows Windows

Updated: 07/09/2020

How to open file with KNM extension?

Being unable to open files with KNM extension can be have various origins. On the bright side, the most encountered issues pertaining to KeyNote Data Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. We have prepared a listing of which will help you resolve your problems with KNM files.

Step 1. Install Keynote software

Install software to open KNM file The most common reason for such problems is the lack of proper applications that supports KNM files installed on the system. The solution to this problem is very simple. Download Keynote and install it on your device. Above you will find a complete listing of programs that support KNM files, classified according to system platforms for which they are available. The safest method of downloading Keynote installed is by going to developer’s website (Marek Jedlinski) and downloading the software using provided links.

Step 2. Verify the you have the latest version of Keynote

Update software that support file extension KNMIf you already have Keynote installed on your systems and KNM files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that Keynote cannot handle files with KNM may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Keynote.

Step 3. Set the default application to open KNM files to Keynote

If you have the latest version of Keynote installed and the problem persists, select it as the default program to be used to manage KNM on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Associate software with KNM 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 KNM file
  • Click Choose another app and then select More apps option
  • To finalize the process, select Look for another app on this PC entry and using the file explorer select the Keynote installation folder. Confirm by checking Always use this app to open KNM files box and clicking OK button.
Associate software with KNM file on Mac

Selecting the first-choice application in Mac OS

  • From the drop-down menu, accessed by clicking the file with KNM extension, select Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • Select Keynote and click Change for all...
  • If you followed the previous steps a message should appear: This change will be applied to all files with KNM extension. Next, click the Continue button to finalize the process.

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

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

Check KNM file for viruses
1. Check the KNM file for viruses or malware

If the file is infected, the malware that resides in the KNM file hinders attempts to open it. Scan the KNM file as well as your computer for malware or viruses. If the scanner detected that the KNM file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Check whether the file is corrupted or damaged

If you obtained the problematic KNM file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. When downloading the file with KNM extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Check if the user that you are logged as has administrative privileges.

Sometimes in order to access files user need to have administrative privileges. Switch to an account that has required privileges and try opening the KeyNote Data Format file again.

4. Check whether your system can handle Keynote

If the system is under havy load, it may not be able to handle the program that you use to open files with KNM extension. In this case close the other applications.

5. Check if you have the latest updates to the operating system and drivers

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with KeyNote Data Format files. It is possible that one of the available system or driver updates may solve the problems with KNM files affecting older versions of given software.

Do you want to help?

If you have additional information about the KNM 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 KNM file.

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