TERX file extension
The table below provides useful information about the .terx file extension. It answers questions such as:
- What is the .terx file?
- What program do I need to open a .terx file?
- How can the .terx file be opened, edited or printed?
- How can I convert .terx files to another format?
Table of Contents
- ✅ RoadEng Terrain Design Document
- 🔄 .terx file converters
- 🚫 .terx file related errors
We hope you find this page helpful and a valuable resource!
1 extension(s) and 0 alias(es) found in database
✅ RoadEng Terrain Design Document

The TERX file is a RoadEng Terrain Design Document. RoadEng is a site and road design software package. It works either as an add-on to other civil design software or as a standalone system.
Other types of files may also use the .terx file extension.
🚫 The .terx file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .terx file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows cannot open this file:
example.terx
To open this file, Windows needs to know what program you want to use to open it...
If you don't know how to set the .terx file association, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .terx file extension, write to us!