Even though OSX and Linux don't have vanilla Morrowind available to them natively, I thought having this program on those platforms might be useful to some. To run the OSX/Linux versions you need to do the following:

After install do this once

1. Open a Terminal
2. Use cd command to navigate to Morrowind game directory
3. chmod 755 ConvertToMW & chmod 755 ConvertToOMW

To run

1. Open a Terminal
2. Use cd command to navigate to Morrowind game directory
3. ./ConvertToMW or ./ConvertToOMW

or

1. Open a Terminal
2. ./{PATH TO MORROWIND DIRECTORY}/ConvertToMW or ./{PATH TO MORROWIND DIRECTORY}/ConvertToOMW

Instead of doing that every time, OSX has a way to run a program in the Terminal just by double clicking it. Some Linux distros have this ability as well and it might be worth looking into if you use this tool a lot.