TOP file extension
The table below provides useful information about the .top file extension. It answers questions such as:
- What is the .top file?
- What program do I need to open a .top file?
- How can the .top file be opened, edited or printed?
- How can I convert .top files to another format?
Table of Contents
We hope you find this page helpful and a valuable resource!
7 extension(s) and 0 alias(es) found in database
✅ GROMACS System Topology

TOP file is a GROMACS System Topology. GROMACS (GROningen MAchine for Chemical Simulations) is a molecular dynamics simulation package originally developed in the University of Groningen. Topology (TOP) file defines the entire systems topology, either directly or by including ITP files.
✅ Topocad Drawing Document

TOP file is a Topocad Drawing Document. Topocad is a topographic CAD application that works with survey data from the field.
✅ Adesso Cyberpad Handwriting Document

TOP file is an Adesso Cyberpad Handwriting Document. Adesso CyberPad is a digital notepad and graphics tablet.
✅ E-Sword v8 Topic Note

TOP file is an E-Sword v8 Topic Note. E-Sword is a Bible study computer software package created by Rick Meyers and developed for Microsoft Windows.
✅ EverNote Handwritten Notes Data

TOP file is an EverNote Handwritten Notes Data. Evernote is a software application that allows users to capture information of various types, including text notes, mobile phone snapshots, printed and handwritten text within images, web clips, and digital ink.
✅ Carlson 2016 Topsoil Definition Data

TOP file is a Carlson 2016 Topsoil Definition Data. Carlson 2016 is application software for land development, civil engineering, surveying, construction, GIS and mining engineering which runs with AutoCAD and IntelliCAD.
✅ Zemax Tolerance Settings Data

TOP file is a Zemax Tolerance Settings Data. Zemax is an optical design program that is used to design and analyze imaging systems such as camera lenses, as well as illumination systems.
Other types of files may also use the .top file extension.
🚫 The .top 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 .top 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.top
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 .top 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.
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