HTP File Extension

What is HTP file?

Full format name of files that use HTP extension is Autodesk Slope Template Definition. Autodesk, Inc. defined the Autodesk Slope Template Definition format standard. HTP file format is compatible with software that can be installed on Windows system platform. HTP file format, along with 622 other file formats, belongs to the 3D Image Files category. AutoCAD Civil is by far the most used program for working with HTP files.

Programs which support HTP file extension

The following listing features HTP-compatible programs. HTP 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 HTP extension?

There can be multiple causes why you have problems with opening HTP files on given system. On the bright side, the most encountered issues pertaining to Autodesk Slope Template Definition 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. Get the AutoCAD Civil

Problems with opening and working with HTP files are most probably having to do with no proper software compatible with HTP files being present on your machine. The solution is straightforward, just download and install AutoCAD Civil. Above you will find a complete listing of programs that support HTP files, classified according to system platforms for which they are available. One of the most risk-free method of downloading software is using links provided by official distributors. Visit AutoCAD Civil website and download the installer.

Step 2. Verify the you have the latest version of AutoCAD Civil

If the problems with opening HTP files still occur even after installing AutoCAD Civil, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of AutoCAD Civil is available. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of AutoCAD Civil installed, it may not support HTP format. The most recent version of AutoCAD Civil is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Associate Autodesk Slope Template Definition files with AutoCAD Civil

If the issue has not been solved in the previous step, you should associate HTP files with latest version of AutoCAD Civil you have installed 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.

Change the default application in Windows

• Right-click the HTP file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where AutoCAD Civil is installed. Now all that is left is to confirm your choice by selecting Always use this app to open HTP files and clicking OK.

Change the default application in Mac OS

• Right-click the HTP 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 HTP extension. Next, click the Continue button to finalize the process.

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

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the HTP file in question. Problems with opening the file may arise due to various reasons.

1. Check the HTP file for viruses or malware

Should it happed that the HTP is infected with a virus, this may be that cause that prevents you from accessing it. Scan the HTP file as well as your computer for malware or viruses. HTP file is infected with malware? Follow the steps suggested by your antivirus software.

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

If you obtained the problematic HTP 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 HTP extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Verify whether your account has administrative rights

Some files require elevated access rights to open them. Switch to an account that has required privileges and try opening the Autodesk Slope Template Definition file again.

4. Check whether your system can handle AutoCAD Civil

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

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

Latest versions of programs and drivers may help you solve problems with Autodesk Slope Template Definition files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with HTP files affecting older versions of given software.

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