Hi,
May i know which excel package version your using?
This is known issue for the excel and fixed in latest packages.
Could you please update the excel package from manage package pane if available.
just to cross check do you mind running same workflow for simple excel file and does error occurs?
Other option:
reference1
reference2
ashokkarale
Anil_G
lrtetala
SorenB
jamuna_T
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mint
nanmishra
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postwick