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Core(PF)- SOI variable crosswalk (Helpful Hint)

This Excel file provides a crosswalk so that SOI variables can be renamed or used in place of Core PF file variables. This is especially useful for the 1994 SOI file, since NCCS does not have a complete Core file for this year. In 1999, SOI changed most variable names in the SOI PF file, so the revised crosswalk includes pre-1999 and 1999 variable names.