Excel does a fairly bad job when moving data between two computers that aren't configured the same way, which kind of defeats the purpose of using a data interchange format.
Where I work we have offices in the US, and in Europe where installing a localized version of windows will swap ',' and '.' when used as the group and decimal separator. Excel when loading a value 100,002 in the US will see one hundred thousand and two, in some parts of Europe it will see one hundred and 2 thousandths.
Character set handing can be just as bad, there is no good way to get Excel to auto open a CSV file as UTF-8 that won't break every other CSV parser in existence. The only cross platform option is ASCII. Excel will happily load your local OS encoding, likely some variant of ISO-8859, but any other encoding requires jumping through hoops.
Where I work we have offices in the US, and in Europe where installing a localized version of windows will swap ',' and '.' when used as the group and decimal separator. Excel when loading a value 100,002 in the US will see one hundred thousand and two, in some parts of Europe it will see one hundred and 2 thousandths.
Character set handing can be just as bad, there is no good way to get Excel to auto open a CSV file as UTF-8 that won't break every other CSV parser in existence. The only cross platform option is ASCII. Excel will happily load your local OS encoding, likely some variant of ISO-8859, but any other encoding requires jumping through hoops.