After you export your face animation from Unreal using the Python script, you will end up with a CSV.

If you open that CSV in Microsoft Excel, the column headings should precisely match the following:
A. CTRL_expressions_jawRight
B. CTRL_expressions_jawLeft
C. CTRL_expressions_jawOpen
D. CTRL_expressions_jawClenchR
E. CTRL_expressions_jawFwd
F. CTRL_expressions_jawBack
G. CTRL_expressions_jawClenchL
H. CTRL_expressions_neckMastoidContractL
I. CTRL_expressions_neckStretchL
J. CTRL_expressions_neckDigastricDown
K. CTRL_expressions_neckDigastricUp
L. CTRL_expressions_neckStretchR
M. CTRL_expressions_neckThroatExhale
N. CTRL_expressions_neckThroatInhale
O. CTRL_expressions_neckMastoidContractR
P. CTRL_expressions_neckThroatDown
Q. CTRL_expressions_neckThroatUp
R. CTRL_expressions_jawChinRaiseDR
S. CTRL_expressions_jawChinRaiseUR
T. CTRL_expressions_mouthLipsBlowR
U. CTRL_expressions_mouthLipsPressR
V. CTRL_expressions_mouthLipsTogetherUL
W. CTRL_expressions_mouthLipsPressL
X. CTRL_expressions_mouthLipsBlowL
Y. CTRL_expressions_mouthStretchLipsCloseR
Z. CTRL_expressions_mouthStretchLipsCloseL
AA. CTRL_expressions_tonguePress
AB. CTRL_expressions_tongueRollLeft
AC. CTRL_expressions_tongueRollRight
AD. CTRL_expressions_tongueRollUp
AE. CTRL_expressions_tongueRollDown
AF. CTRL_expressions_tongueTipLeft
AG. CTRL_expressions_tongueTipRight
AH. CTRL_expressions_tongueTipUp
AI. CTRL_expressions_tongueTipDown
AJ. CTRL_expressions_tongueLeft
AK. CTRL_expressions_tongueRight
AL. CTRL_expressions_tongueUp
AM. CTRL_expressions_tongueDown
AN. CTRL_expressions_tongueWide
AO. CTRL_expressions_tongueNarrow
AP. CTRL_expressions_tongueIn
AQ. CTRL_expressions_tongueOut
AR. CTRL_expressions_tongueRoll
AS. CTRL_expressions_mouthLeft
AT. CTRL_expressions_mouthRight
AU. CTRL_expressions_mouthUp
AV. CTRL_expressions_mouthDown
AW. CTRL_expressions_mouthUpperLipRaiseL
AX. CTRL_expressions_mouthSharpCornerPullL
AY. CTRL_expressions_mouthCornerPullL
AZ. CTRL_expressions_mouthDimpleL
BA. CTRL_expressions_mouthCornerDepressL
BB. CTRL_expressions_mouthStretchL
BC. CTRL_expressions_mouthLowerLipDepressL
BD. CTRL_expressions_mouthLowerLipDepressR
BE. CTRL_expressions_mouthStretchR
BF. CTRL_expressions_mouthLipsTowardsDL
BG. CTRL_expressions_mouthFunnelUR
BH. CTRL_expressions_neckSwallowPh1
BI. CTRL_expressions_neckSwallowPh2
BJ. CTRL_expressions_mouthLipsTowardsUL
BK. CTRL_expressions_mouthLowerLipBiteR
BL. CTRL_expressions_mouthFunnelDR
BM. CTRL_expressions_mouthLipsTightenDL
BN. CTRL_expressions_mouthPressUL
BO. CTRL_expressions_mouthLipsTightenDR
BP. CTRL_expressions_mouthFunnelDL
BQ. CTRL_expressions_mouthCheekSuckL
BR. CTRL_expressions_mouthCheekBlowL
BS. CTRL_expressions_mouthLipsTightenUL
BT. CTRL_expressions_mouthLipsTightenUR
BU. CTRL_expressions_mouthPressDL
BV. CTRL_expressions_mouthFunnelUL
BW. CTRL_expressions_mouthLipsTowardsUR
BX. CTRL_expressions_mouthLipsPurseDR
BY. CTRL_expressions_mouthUpperUpBiteL
BZ. CTRL_expressions_mouthPressDR
CA. CTRL_expressions_mouthPressUR
CB. CTRL_expressions_mouthLipsPurseDL
CC. CTRL_expressions_mouthUpperLipBiteR
CD. CTRL_expressions_mouthCheekSuckR
CE. CTRL_expressions_mouthCheekBlowR
CF. CTRL_expressions_mouthLipsPurseUL
CG. CTRL_expressions_mouthLipsTowardsDR
CH. CTRL_expressions_mouthLowerLipBiteL
CI. CTRL_expressions_mouthLipsPurseUR
CJ. CTRL_expressions_mouthCornerDepressR
CK. CTRL_expressions_mouthUpperLipRaiseR
CL. CTRL_expressions_mouthDimpleR
CM. CTRL_expressions_mouthSharpCornerPullR
CN. CTRL_expressions_mouthCornerPullR
CO. CTRL_expressions_earUpR
CP. CTRL_expressions_earUpL
CQ. CTRL_expressions_noseNostrilDilateR
CR. CTRL_expressions_noseNostrilCompressR
CS. CTRL_expressions_noseWrinkleR
CT. CTRL_expressions_noseNostrilDepressR
CU. CTRL_expressions_noseNostrilDilateL
CV. CTRL_expressions_noseNostrilCompressL
CW. CTRL_expressions_noseWrinkleL
CX. CTRL_expressions_noseNostrilDepressL
CY. CTRL_expressions_eyeLookLeftL
CZ. CTRL_expressions_eyeLookRightL
DA. CTRL_expressions_eyeLookUpL
DB. CTRL_expressions_eyeLookDownL
DC. CTRL_expressions_eyeBlinkL
DD. CTRL_expressions_eyeWidenL
DE. CTRL_expressions_eyeLookLeftR
DF. CTRL_expressions_eyeLookRightR
DG. CTRL_expressions_eyeLookUpR
DH. CTRL_expressions_eyeLookDownR
DI. CTRL_expressions_eyeBlinkR
DJ. CTRL_expressions_eyeWidenR
DK. CTRL_expressions_eyePupilWideR
DL. CTRL_expressions_eyePupilNarrowR
DM. CTRL_expressions_eyePupilWideL
DN. CTRL_expressions_eyePupilNarrowL
DO. CTRL_expressions_eyeLookLeftL
DP. CTRL_expressions_eyeLookRightL
DQ. CTRL_expressions_eyeLookUpL
DR. CTRL_expressions_eyeLookDownL
DS. CTRL_expressions_eyeCheekRaiseL
DT. CTRL_expressions_eyeSquintInnerL
DU. CTRL_expressions_eyeLidPressL
DV. CTRL_expressions_noseWrinkleUpperL
DW. CTRL_expressions_noseWrinkleUpperR
DX. CTRL_expressions_eyeSquintInnerR
DY. CTRL_expressions_eyeCheekRaiseR
DZ. CTRL_expressions_eyeLidPressR
EA. CTRL_expressions_browLateraIR
EB. CTRL_expressions_browLateralL
EC. CTRL_expressions_browDownR
ED. CTRL_expressions_browDownL
EE. CTRL_expressions_browRaiseOuterL
EF. CTRL_expressions_browRaiselnL
EG. CTRL_expressions_browRaiselnR
EH. CTRL_expressions_browRaiseOuterR
EI. CTRL_expressions_mouthCornerWideL
EJ. CTRL_expressions_mouthCornerNarrowL
EK. CTRL_expressions_mouthCornerUpL
EL. CTRL_expressions_mouthCornerDownL
EM. CTRL_expressions_mouthCornerUpR
EN. TRL_expressions_mouthCornerDownR
EO. CTRL_expressions_mouthCornerWideR
EP. CCTRL_expressions_mouthCornerNarrowR
EQ. CTRL_expressions_eyeFaceScrunchR
ER. CTRL_expressions_mouthLipsPushUL
ES. CTRL_expressions_mouthLipsPullUL
ET. CTRL_expressions_mouthLipsThickUR
EU. CTRL_expressions_mouthLipsPushDL
EV. CTRL_expressions_mouthLipsPullDL
EW. CTRL_expressions_mouthLipsThickUL
EX. CTRL_expressions_mouthCornerRounderDR
EY. CTRL_expressions_mouthCornerSharpenDR
EZ. CTRL_expressions_mouthLowerLipShiftLeft
FA. CTRL_expressions_mouthLowerLipShiftRight
FB. CTRL_expressions_mouthLowerLipRollInR
FC. CTRL_expressions_mouthLowerLipRollOutR
FD. CTRL_expressions_mouthLipsThickDL
FE. CTRL_expressions_mouthCornerRounderUR
FF. CTRL_expressions_mouthCornerSharpenUR
FG. CTRL_expressions_mouthUpperLipShiftLeft
FH. CTRL_expressions_mouthUpperLipShiftRight
FI. CTRL_expressions_mouthUpperLipRollInR
FJ. CTRL_expressions_mouthUpperLipRollOutR
FK. CTRL_expressions_mouthLowerLipRollInL
FL. CTRL_expressions_mouthLowerLipRollOutL
FM. CTRL_expressions_mouthCornerRounderDL
FN. CTRL_expressions_mouthCornerSharpenDL
FO. CTRL_expressions_mouthLipsThickDR
FP. CTRL_expressions_mouthUpperLipRollInL
FQ. CTRL_expressions_mouthUpperLipRollOutL
FR. CTRL_expressions_mouthCornerRounderUL
FS. CTRL_expressions_mouthCornerSharpenUL
FT. CTRL_expressions_noseNasolabialDeepenL
FU. CTRL_expressions_eyeFaceScrunchL
FV. CTRL_expressions_mouthLipsPushUR
FW. CTRL_expressions_mouthLipsPullUR
FX. CTRL_expressions_mouthLowerLipTowardsTeethR
FY. CTRL_expressions_mouthLowerLipTowardsTeethL
FZ. CTRL_expressions_noseNasolabialDeepenR
GA. CTRL_expressions_mouthLipsPushDR
GB. CTRL_expressions_mouthLipsPullDR
GC. CTRL_L_mouth_lipsTowardsTeethU_1451
GD. CTRL_expressions_mouthUpperLipTowardsTeethR
GE. Discard because no blendshape
GF. Discard because no blendshape