Unreadable content when reporting on Goals

Summary

Excel generated error when using Export to Excel

Content

Hi, when I'm reporting off the 'Workforce Goals - Goal Status overview real time' subject area, the analysis finishes fine, it's when I try to export to Excel that Excel throws a 'Excel found unreadable content in [name of report]. Do you want to recover the contents of this workbook?'

Is there any way of handling this? If I respond with Yes, it only partly dumps out the contents.

I have to export, csv to get all the rows, but this leaves out the formatting of Export to Excel. Any ideas? I'm thinking it from all the copy/pasting employees are doing into the goals window in HCM.