There are all sorts of data that are nearly impossible to get into Excel because of the ways that it tries to turn everything into a date. There has been so much silent data corruption because of random misfeatures that were added decades ago and now they will never back out of the system. The string OCT4 amongst a column of alphanumeric identifiers will get changed into a date, silently, on import, and it's nigh on impossible to find out how to import without that silent conversion. It's better to write your own Python code to get data into Excel than to use its built in foot guns.