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Converting a date to a special format

I need help trying to figure out the right formula for a date format.  I'm trying to create a custom button that will automatically map to folders on an external drive.  The problem we have with the external drive is we can only save a date in the following format: instead of how sfdc has it: month/day/year.  So, ideally I want this field to be the close date in that format so I can create a formula that will map to the external drive. 

Any ideas?

Provided you have a date-typed field to start with, the formula snippet to generate this syntax would be:

MONTH(datefield) & '.' & DAY(datefield)  & '.' & YEAR(datefield)

If the field is actually a datetime field then you want something more like:

MONTH(DATEVALUE(datetimefield)) & '.' & DAY(DATEVALUE(datetimefield))  & '.' & YEAR(DATEVALUE(datetimefield))
Thanks - got it to work!