ETT spreadsheet format from Kingsoft Office is not well supported in other programs, so it is wise to export it to XLS so it can be used in other programs. Should you ever need ETT to XLS conversion, you can download Kingsoft Office for free and perform the conversion.
Convert Kingsoft Spreadsheets template to Microsoft Excel 97 to 2003 workbook.
We found one software available in the database for this conversion.
Microsoft Windows software - convert ett to xls on Windows
One of the many office suite software products
Convert from ett file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.