Cannot Open Jar file

[mystictide]

I have downloaded a professionally written java program. I unzipped it and saved the unzipped files in a desktop folder, which automatically ended with the extension -app with the .jar on the zipped file omitted. (ie -app not -app.jar)

Double clicking did not open the program and right clicking does not offer the option to open with.

The file has a folder icon not a java icon

I thus tried to run it with the cmd

I opened cmd as administrator

changed the prompt to desktop, where the folder is located

I tried java -jar filename
I tried java -jar filename.jar
I tried java -jar "filename.jar"

I always receive the same message

Cannot open jar file

Can anyone help please. I am using windows 8.1 and I have another java program on the pc that RUNS, so java is installed and is working

 

[popatim]

Sounds like you downloaded a OSx app, not a java

 

[mystictide]

Sounds like you downloaded a OSx app, not a java

What should I do to convert it please? Many people use this app who are like me relative beginners and they do not seem to have problems using the facility which has been written to download stock prices and import them into Microsoft money

 

[mystictide]

Further to my response, the file I downloaded is the update to the one I am already using.

The downloaded file then unzipped is hleOfxQuotes-Build_20111221_78-app.zip

The one I am running is and has been run for some time is hleOfxQuotes-Build_20111104_41-app.jar, just an earlier build.

I have looked up what an osx app is and do not believe that you can be right as that would be for a MAC and you cannot run microsoft money on a MAC so why would the builder write a MAC program for it?

Richard