THR Types

Chief THR Description

.THR

File Name:	.thr
Category:	Pro/ENGINEER File

THR file stores various data for internal purposes used by Pro/ENGINEER, a 3D CAD/CAM modeling software for Microsoft Windows.

Company:	PTC
Kind:	Data Files
Registry Key:	HKEY_CLASSES_ROOT\.thr

Software Programs That Open The Pro/ENGINEER File:

Pro/ENGINEER by PTC

Windows

Other THR File Associations

.THR

File Name:	.thr
Category:	PROGNOSIS Threshold Document File

The THR file saves threshold document for PROGNOSIS.

Company:	Integrated Research Limited
Kind:	Text Files

Software Programs That Open PROGNOSIS Threshold Document File Files:

PROGNOSIS by Integrated Research Limited

Compatible with:

Windows

.THR

File Name:	.thr
Category:	Thred Embroidery Outline File

The THR file saves embroidery outline made with the embroidery patterns digitization program; Thred.

Company:	Thredworks
Kind:	Vector Image Files

Software Programs That Open Thred Embroidery Outline File Files:

Thred by Thredworks

Compatible with:

Windows

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Sources of THR Problems

Troubles Opening THR Files

Pro/ENGINEER is Not Installed

Double-clicking your THR file prompts the message "%%os%% Can't Open THR File". If so, it typically means that you don't have Pro/ENGINEER installed for %%os%%. Your operating system cannot associate your THR with Pro/ENGINEER, so double-clicking the file won't work.

Tip: If you don't have Pro/ENGINEER installed, and you know of another program to open your THR file, you can try opening it by selecting from the programs listed under "Show Apps".

Pro/ENGINEER Requires Update

It is possible that your version of Pro/ENGINEER isn't able to open your Pro/ENGINEER File file due to incompatibility. If you've got the wrong version of Pro/ENGINEER installed, you'll need to install the correct version. Your Pro/ENGINEER File file was probably created by a newer release of Pro/ENGINEER than what's currently installed your computer.

Tip: Investigate your THR file by right-clicking and selecting "Properties" to find clues on what version you need.

Conclusion: The majority of THR file opening issues are due to not having the correct Pro/ENGINEER version installed.

Other Causes of THR File Opening Problems

Even with the correct version of Pro/ENGINEER installed, you can still experience difficulties opening THRs. There can be other issues - unrelated to software - preventing you from opening THR files. These issues include:

• Invalid THR file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• The THR file description within the Windows Registry was removed
• Partial installation of Pro/ENGINEER that did not fully complete
• The THR itself is corrupted
• THR file integrity has been compromised by malware
• Device drivers of the hardware associated with your THR file are corrupt or out-of-date
• Windows has inadequate resources to open your Pro/ENGINEER File file