Thank you, Christie Ann,
Please see the error message - I couldn't attach the file because it's in notepad, so I just copied the first few lines
*** YOUR IIF FILE COULDN'T BE IMPORTED ***
;
;Some of your records have errors.
;
;1. Search for the errors by typing "[ERROR]" to see only the failed records.
;
;2. Fix the errors and try to import the file again
;
;-----------------------------------------------------------------------------
;
;
!TIMEACT DATE JOB EMP ITEM DURATION PROJ BILLINGSTATUS NOTE PITEM
; [ERROR] The record at (or starting at) this line could not be imported. The name "Bac Mutzus, Domingo" of the list element is already in use. [3100]
TIMEACT 2/3/2022 JL Construction, Inc.:21-43 - Los Medanos ES Bac Mutzus, Domingo Construction 8:0 1 Laborer Reg Rate
; [ERROR] The record at (or starting at) this line could not be imported. The name "Bac Mutzus, Domingo" of the list element is already in use. [3100]
TIMEACT 2/3/2022 JL Construction, Inc.:21-43 - Los Medanos ES Bac Mutzus, Domingo Construction 0:30 1 Laborer OT