You must be confusing when your computer is act strangely when there is new extensions are entering their system. Well, it is actually normal for computer to act that way especially when there is antivirus installed in your computer. It is automatically detecting the strange extension as virus or strange object and the result your computer will prevent the process of the file to run in your computer’s system.

That is why before you run a file with strange extension you have to make sure first about what the file is for. What do you know about file with extension .ofx? Well, perhaps you are not the only one who doesn’t know about what this extension is. If you know nothing about it, perhaps you can visit Fileextensionofx.com to find out more information about the extension. Actually, there are a lot of strange extension that you can find such as .p7m, .srt, .djvu and many more. After you find out what the file is about then you should find the program that could run the file with those extension so your computer will not detect it as virus.

For the further information about strange extension, you can use internet to find the information that you need.