Here are two Excel files Cowboy gave me years ago to tune my Fox Air Shocks you can change the inputs and calculate for your shock.
Not everybody has Microsoft office to view and use these files you can download openoffice for FREE at
http://www.openoffice.org/download/index.htmlThey even have portable versions if you don't want to install the program on your computer FREE
http://www.openoffice.org/porting/index.htmlHere is another office program you can use that is also portable LibreOffice Portable v4.1.3 and its FREE
http://www.portablefreeware.com/index.php?id=2055Kingsoft Office Suite Free
http://www.filehippo.com/download_kingsoft_office_suite_free/