Racesing _ACS2015 from Race

Hi, I have dowloaded the 2015 ACS dataset and I would like to convert the variable race into racesing. How do I do that? Do you have a step-by-step instraction link?

Thank you so much

The Excel spreadsheet linked below shows how the codes in RACE were converted into the coding scheme in RACESING. Additionally the variable description for RACESING contains more information about the process used to assign a single race to multi-race individuals.

I hope this helps.