When you upload your XLS spreadsheet to Google Sheets a link to it is created which is represented with a *.gsheet file. So it is not a conversion in true sense, more of linking your spreadsheet with Google Docs.
Convert Microsoft Excel 97 to 2003 workbook to Link to Google Sheets web application spreadsheet document.
We have found one software suitable in our database for this conversion.
On-line services software - convert xls to gsheet on web
Spreadsheet web app from Google
Convert from xls file format
|Yes, Google Sheets supports gsheet file conversion as a target file type.||No||No||No||No||No||No||No|
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.