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TOPPRJ file extension

The table below provides useful information about the .topprj file extension. It answers questions such as:

  • What is the .topprj file?
  • What program do I need to open a .topprj file?
  • How can the .topprj file be opened, edited or printed?
  • How can I convert .topprj files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ TopSolid Project

TOPPRJ file is a TopSolid Project. TopSolid is a fully integrated CAD/CAM (Computer Aided Design & Computer Aided Manufacturing) software which is developed by the company Missler Software.
TOPPRJ format description not yet available
Category: Project files
Application: TopSolid
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
TOPPRJ aliases:
TOPPRJ related links:
TOPPRJ related extensions:
TopSolid Viewer Document

TopSolid Nesting Module

TopSolid Package

Other types of files may also use the .topprj file extension.

🔴 Can't open a .topprj 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:


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 .topprj 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 .topprj file extension, write to us!

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