THMX File Extension

What is THMX file?

THMX is a template file associated with Office 2007 and greater. THMX files do not contain any document data (such as header or footer sections), only settings such as fonts, colors, or formatting. THMX templates can be used for generating Word, Excel, or PowerPoint documents. The main use of THMX files is to provide a standardized document layout and formatting.

Generating template files

Template files can be generated any of the above-mentioned applications. Custom template can be generated using the theme editor panel. Exported theme can then be used as a document template via THMX files.

Programs which support THMX file extension

The following list contains programs grouped by 2 operating systems that support THMX files. Files with THMX 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: 12/07/2023

How to open file with THMX extension?

Being unable to open files with THMX extension can be have various origins. On the bright side, the most encountered issues pertaining to Office 2007 Theme Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install Microsoft Word software

The main and most frequent cause precluding users form opening THMX files is that no program that can handle THMX files is installed on user’s system. This one is an easy one. Select Microsoft Word or one of the recommended programs (for example, Microsoft Excel, PowerPoint, SharePoint) and download it from appropriate source and install on your system. The full list of programs grouped by operating systems can be found above. The safest method of downloading Microsoft Word installed is by going to developer’s website (Microsoft Corporation) and downloading the software using provided links.

Step 2. Check the version of Microsoft Word and update if needed

If the problems with opening THMX files still occur even after installing Microsoft Word, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Microsoft Word is available. 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 Microsoft Word installed, it may not support THMX format. The latest version of Microsoft Word should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open THMX files to Microsoft Word

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

Selecting the first-choice application in Windows

• Clicking the THMX with right mouse button will bring a menu from which you should select the Open with option
• Select Choose another app → More apps
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Microsoft Word is installed. Now all that is left is to confirm your choice by selecting Always use this app to open THMX files and clicking OK.

Selecting the first-choice application in Mac OS

• Right-click the THMX file and select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select the appropriate software and save your settings by clicking Change all
• If you followed the previous steps a message should appear: This change will be applied to all files with THMX extension. Next, click the Continue button to finalize the process.

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

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper THMX file. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the THMX file for viruses or malware

If the THMX is indeed infected, it is possible that the malware is blocking it from opening. Scan the THMX file as well as your computer for malware or viruses. THMX file is infected with malware? Follow the steps suggested by your antivirus software.

2. Ensure the file with THMX extension is complete and error-free

If you obtained the problematic THMX 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. When downloading the file with THMX 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.

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the Office 2007 Theme Format file.

4. Check whether your system can handle Microsoft Word

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

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

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Office 2007 Theme Format files. It may be the case that the THMX files work properly with updated software that addresses some system bugs.

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