Microsoft Project supports XLSX and XLSB formats from Microsoft Excel and can use the data from them to create a new plan file through an import wizard. It does not support XLSM (spreadsheets with macros) files though.
Convert Microsoft Excel Open XML workbook and spreadsheet to Microsoft Project plan.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert xlsx to mpp on Windows
A project management software program developed and sold by Microsoft
Convert from xlsx 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.