>> TOPPRJ file

TOPPRJ file format description

Many people share .topprj files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .topprj file can be edited, converted or printed with. On this page, we try to provide assistance for handling .topprj files.

1 filename extension(s) found in our database.

.topprj - TopSolid Project

The TOPPRJ project files are related to TopSolid. The 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.

Project files
- / -
TopSolid Project related extensions:
TopSolid Nesting Module
TopSolid Design Document
TopSolid Package

Naturally, other applications may also use the .topprj file extension. Even harmful programs can create .topprj files. Be especially cautious with .topprj files coming from an unknown source!

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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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