File Extension Library

.TOP File Extension

  • Developer by: Gromacs
  • Category: Data Files
  • Format: Text

What is an .TOP file?

.TOP file extension is created by Gromacs. .TOP has been classified as Data Files. The format of .TOP file is Text.

.TOP is Gromacs Topology File

Data file created by Gromacs, a molecular data analysis application; contains a molecular topology, which formally describes the structure of a molecule; created by pdb2gmx, a program that generates topologies from Protein Data Bank (.PDB) and Residue Topology Parameter (.RTP) files.

List of all softwares that can open the Gromacs Topology File
File Type 2:

TopSolid Design Document

Developer by: Missler Software Category: CAD Files

CAD file created by TopSolid, a program used for CAD design and PDM (product data management); stores a CAD drawing, which is comprised of one or more parts; includes the 3D geometry of the part models and may include Bill of Materials (BoM) information as well.

TOP files can be viewed with Missler's free TopSolid'Viewer CAD viewing software.

List of all softwares that can open the TopSolid Design Document
Missler TopSolid
Missler TopSolid'Viewer

How to Open .TOP file on different platforms

Open .TOP File on Windows

  • Right-click a .TOP
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .TOP file and Select check box "Always use this app to open .TOP files" Press "Ok"

Open .TOP File on Mac

  • Right-click (or Ctrl + Left-click) the .TOP file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .TOP File on Linux

Right click on the .TOP file, choose "Open with" and select a program from the list above

Open .TOP File on iPhone

Select a file. If you don't see an application to open the .TOP file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .TOP File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .TOP files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .TOP files

  1. You need to update the application that you normally use to open .TOP files. Only the latest version of the software supports the current .TOP file format
  2. You need to check the .TOP file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)