Xlsm
An XLSM file is a macro-enabled spreadsheet created by Microsoft Excel for representing spreadsheets that support Macros and is one of the supported formats by RadSpreadProcessing.
If you would like to work with Xlsm files in SpreadProcessing, check the Using XlsmFormatProvider article.
Currently the Macros are only preserved during import and export. They cannot be executed or changed in the code.