Problems With Hosting Minecraft Server

I am having Problems With Launching a minecraft Server. I have tried spigot and open it with a batch file but it doesn't seem to work. I am on windows 10 the code for the batch file I am using is

java -Xmx2048M -jar minecraft_server.1.8.9 -o true
PAUSE

And it doesn't launch the jar file it says error unable to access jarfile minecraft_server.1.8.9

Your launch command is missing the file extension. It should look like this:

java -Xmx2048M -jar minecraft_server.1.8.9.jar -o true
PAUSE

By default these extensions are hidden in Windows Explorer; you can turn them on (in Windows 10) by clicking on the View tab at the top of the folder and checking the box by 'File name extensions'.