Hi Lovey1970,
Thanks for your query in this community.
I've tested paste special > Keep Source Column Widths on my side and it will paste the column width as well as the data we selected. Please check the following gif:
The version I tested is Monthly Channel version 1908 Build 11929.20300, if you are not using the latest version of Office 365, please first try updating your Office products.
If you are already using the latest Office version but receiving the same behavior, to help us further troubleshoot on this issue, please confirm the following information with us:
1.Please share us a screenshot on your Office version, you will find your detailed version number at File > Account.
2.Is this issue occurring on a specific workbook? If you create a new workbook and try pasting Keep Source Column Widths, will the data be copied correctly?
3.Try booting your Excel in safe mode, and check the paste behavior.
Regards,
Alex Chen