QTM File Extension

What is QTM file?

Full format name of files that use QTM extension is Apple QuickTime Movie Format. Apple QuickTime Movie Format specification was created by Apple. QTM file format is compatible with software that can be installed on Mac OS, Windows system platform. QTM file belongs to the Video Files category just like 546 other filename extensions listed in our database. The most popular program for handling QTM files is QuickTime Player, but users can choose among 3 different programs that support this file format. On the official website of Apple, Inc. developer not only will you find detailed information about theQuickTime Player software, but also about QTM and other supported file formats.

Programs which support QTM file extension

The list that follows enumerates programs compatible with QTM files, divided into 2 categories based on operating system on which they are available. QTM files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with QTM extension?

Being unable to open files with QTM extension can be have various origins. On the bright side, the most encountered issues pertaining to Apple QuickTime Movie Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Download and install QuickTime Player

Problems with opening and working with QTM files are most probably having to do with no proper software compatible with QTM files being present on your machine. This issue can be addressed by downloading and installing QuickTime Player or different compatible program, such as PowerDVD, Roxio Popcorn. The full list of programs grouped by operating systems can be found above. The safest method of downloading QuickTime Player installed is by going to developer’s website (Apple, Inc.) and downloading the software using provided links.

Step 2. Update QuickTime Player to the latest version

You still cannot access QTM files although QuickTime Player is installed on your system? Make sure that the software is up to date. 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 QuickTime Player installed, it may not support QTM 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 QuickTime Player.

Step 3. Assign QuickTime Player to QTM files

If you have the latest version of QuickTime Player installed and the problem persists, select it as the default program to be used to manage QTM 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.

The procedure to change the default program in Windows

• Right-click the QTM file and choose Open with option
• Click Choose another app and then select More apps option
• Finally select Look for another app on this PC, point to the folder where QuickTime Player is installed, check the Always use this app to open QTM files box and conform your selection by clicking OK button

The procedure to change the default program in Mac OS

• By clicking right mouse button on the selected QTM file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• Select the appropriate software and save your settings by clicking Change all
• Finally, a This change will be applied to all files with QTM extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the QTM is not faulty

Should the problem still occur after following steps 1-3, check if the QTM file is valid. Problems with opening the file may arise due to various reasons.

1. The QTM may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the QTM file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. QTM file is infected with malware? Follow the steps suggested by your antivirus software.

2. Check whether the file is corrupted or damaged

If you obtained the problematic QTM file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with QTM extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Apple QuickTime Movie Format file.

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

If the systems has insufficient resources to open QTM files, try closing all currently running applications and try again.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Apple QuickTime Movie Format file. It is possible that one of the available system or driver updates may solve the problems with QTM files affecting older versions of given software.

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