Hi Tom and Judy You have posted in the developer's mailing list. In the future if you need assistance please post your questions at https://forum.openoffice.org/
> All my files in Open Office Calc, (I believe it is called) going back 5 or > 6 years are now shown to be in Excel but do not have any data in them > except underline > The system I have is (unfortunately) Windows 10 > Your best option to check what is wrong is to install a Portable version of Apache OpenOffice https://portableapps.com/apps/office/openoffice_portable and open your files to make sure all data is there. If all is well and you prefer to continue to use OpenOffice as your default Office suite you can install the latest version after downloading from http://www.openoffice.org/download/index.html Best regards Pedro
