The Master Concordance File defines standards and provides documentation necessary to build structured databases from the IRS E-File XML files posted on AWS.
In the third line below, F9_01_PF_ARETNIINCM should be F9_01_PF_ARETNIINCOME
F9_01_PF_ARETNIINCM | Taxes - Net Investment Income
F9_01_PF_ARETNIINCM | Taxes - Net Investment Income
F9_01_PF_ARETNIINCM | Total - Net Investment Income
F9_01_PF_ARETNIINCOME | Total - Net Investment Income
In the third line below, F9_01_PF_ARETNIINCM should be F9_01_PF_ARETNIINCOME
F9_01_PF_ARETNIINCM | Taxes - Net Investment Income F9_01_PF_ARETNIINCM | Taxes - Net Investment Income F9_01_PF_ARETNIINCM | Total - Net Investment Income F9_01_PF_ARETNIINCOME | Total - Net Investment Income