Are you sure you put it in
C:\ProgramData\Expedition\Sails
There's a couple similarly named files...
Ernie

HH,
Try this:
In Exp Open your existing SailChart and click the Save As icon
point it to an outside file (say a thumb drive) and give it a name you'll recognize, say HitchHikerTest

Open F:/HitchHikerTest,txt and make the changes you want
Back in Exp in your SailChart click the OpenFile icon and scrole down to F:/ and click on your F:/HitchHikerTest,txt   it should open
Then in your SailChart click on SaveAs it will be pointed at C:/ and give it a name say HH2 and Save

It should be there
You can now fool around with a 'new' file and see what you're doing wrong
If you want you can PM me,
Cheers,
Ernie