open your vi in LabVIEW 8.6 and select "save for previous". After you store it for 8.5 you can open it with LV 8.5.
He may not have LV8.6, which would explain why he is asking for help.
Attach the vi's that you want converted to LV8.5 and I'm sure someone will save it to the previous version for you... (if you do not have LV8.6)
You can either choose to save it for previous version in LabVIEW 8.6 or post it to the forum and have someone save it for you.
Have a great day
please convert me attached llb file in LV 8.5. It is created by LV 8.6
Thanks in advance