.H1Q File

.h1q is Microsoft Help Merged Query Index File

Key Features: .H1Q File Extension

Features	Description
File Extension	.h1q
Format	N/A
Created by	Microsoft
Category	Misc

What is an .H1Q file?

Query index used by Microsoft Help, a system help program included with the Windows operating system; stored in the "\Documents and Settings\All Users\Application Data\Microsoft Help" in Windows XP and the "\ProgramData\Microsoft\Assistance\Client\1.0\en-US" directory in Windows Vista.

Microsoft

Misc

N/A

How to solve problems with H1Q files

Associate the H1Q file extension with the correct application. On :
Windows: Right click on any H1Q file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.H1Q files". Mac: Right click (or Ctrl-click) the H1Q file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
Update your software that should actually open .H1Q is Microsoft Help Merged Query Index File. Because only the current version supports the latest H1Q file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .H1Q is Microsoft Help Merged Query Index File update.
To make sure that your H1Q file is not corrupted or virus-infected, get the file again and scan it with antivirus software.