While searching for an answer to the question - How to open the QPI 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 QPI file. Each program contains a different type of data and you need specialized software to properly work with the QPI file. Here is a list of programs that are designed to work with the QPI 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 | Quicken Win Version 3 |
| Developer | Intuit Inc. |
| Popularity | |
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If after installing the program from a list, you still cannot open a file with the QPI extension, the reason may be that the file is damaged. The solution may be to find a new copy of the QPI 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 QPI 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 QPI 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 QPI file using the program installed earlier.
Entries containing links of the QPI 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 QPI file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the QPI file mentioned. If the antivirus application detects malicious data, it may signify that the QPI file is infected.
| QPS | Timeasure |
| QP03 | Qpress Compressed Archive |
| QPR | FoxPro Database Query |
| QPH | Intuit Quicken Price History Format |
| QPB | Quicken Payroll Format |
| QPX | FoxPro Compiled Executable QBE Query Format |
| QP2 | QuickPar Cache |
| QPF | Quartus II Project Format |
| QPW | Corel Quattro Pro Spreadsheet Format |
| QP1 | QuickPar Cache |
