While searching for an answer to the question - How to open the H1Q file? - you probably found websites, which offer software that was able to open any file extension. Do not be fooled, there is no one program that will allow you to work with any file extension, including the H1Q file. Each program contains a different type of data and you need specialized software to properly work with the H1Q file. Here is a list of programs that are designed to work with the H1Q file - remember, these applications are able to open at most a few file extensions, they are designed to work with a specific data type.
| File type | Microsoft Help Merged Query Index Format |
| Developer | Microsoft |
| Popularity | |
| Share |
If after installing the program from a list, you still cannot open a file with the H1Q extension, the reason may be that the file is damaged. The solution may be to find a new copy of the H1Q file you want to open
In this case, the easiest way is to use the tool built into the operating system for association of the H1Q file with applications to support it. Double click on the file you cannot open - the operating system will display a list of programs that are likely to work with your H1Q file. Choose one of them, or select the location on a disk where you installed one of the applications from our list. Windows should then open the H1Q file using the program installed earlier.
Entries containing links of the H1Q file extensions with applications is located in the HKEY_CLASSES_ROOT. If you do not know how to get to the Windows Registry, or how to make changes in it, ask a specialist for help. Lack of knowledge on the subject may cause irreversible changes on your computer.
There may be a situation when a computer virus passes itself off as the H1Q file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the H1Q file mentioned. If the antivirus application detects malicious data, it may signify that the H1Q file is infected.
| H1H | Microsoft Windows Merged Hierarchy Help |
| H1S | Microsoft Windows Assistance Platform Client Help Format |
| H1W | Microsoft Windows Keyword Index |
| H1V | Task Metadata - Microsoft Windows Assistance Platform Client Help Related |
| H12 | At Home 2012 Tax Return Format |
| H1C | Windows Vista File Related To Assistance Platform (AP) Help |
| H10 | At Home Canada 2010 Tax Return Format |
| H11 | At Home 2011 Tax Return Format |
| H1Q | Microsoft Help Merged Query Index Format |
| H1T | Microsoft Windows Assistance Platform Client Help Related |
