Why does the font change when copying between Excel workbooks

[Guest]

I receive workbooks from colleagues for collation into a single workbook.
When I try to copy data between workbooks, it is not pasted with the font
properties of the original data or the default properties of the receiving
workbook, even if those fonts are identical, but in some font with an
uninteligible oriental character name.

Can anybody tell me why this is?

 

[Guest]

You don't have the same fonts as your colleagues on your local machine.