Unless you give some hint as to what "the output is incorrect" means,
the only wild guesses I can make a

1) US and UK date formats are poorly handled
2) Currency exchanges aren't made correctly
3) Time zone corrections aren't made correctly
4) Spelling is different



In article ,
Teresa wrote:

I have some macros which reformat a worksheet, add data into new columns,
perform calculations in new columns, re-order and re-name the columns and
save to a new file location. They work in the UK, but the output is incorrect
when they are run in the US. What settings are likely to cause this?