How to resolve same file extensions conflict using LabVIEW ?

All,
Let's say I have two files withe the same file extension. One of the files opens only with one particular program whereas another file opens only with another program.
So I was wondering, by using LabVIEW , if there is a way to tell (programatically) to which program are each of these files assigned to.
I am not quite sure if there is something that can be done by using WINAPI or .NET?
Please help
Thank you

The only way you are going to be able to do that is if there is something within the file itself that gives an indication what program might have saved it.
For example, in the header for an .xls file, there is probably something that describes it as Microsoft Excel, perhaps even the version of Excel, that was put there when Excel saved it. But if you have another program save the file, let's say notepad was used and the user picked .xls as the file extension, then there is nothing that will describe that Notepad saved it.
But all of this is basically what ToeCutter was already telling you.
If you need more help, then you will have to provide more information such as what types of files and what programs were used that got their file extensions mixed up.

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