Why is Excel not saving my formatting?

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Tags

1. #older
2. #seeing
3. #other
4. #manner
5. #possible
6. #cause
7. #losses
8. #conditional
9. #colors
10. #formatting
11. #corrupted
12. #particularly
13. #workbook
14. #format
15. #excel
16. #being
17. #saving
18. #supported