We have found 3 software records in our database eligible for .xlsm to .xml file format conversion.
Spreadsheets editors (Excel, Calc etc.) nowadays support export to XML format and most of the modern spreadsheet formats are XML based anyway. The simplest way to achieve xlsm to xml conversion is by using the File ► Save as.. function. This will create a plain version of the spreadsheet as a XML tabled.
Updated: September 14, 2022
XLSM
Files with xlsm extension are used for workbooks of spreadsheets created in Microsoft Excel that also include macros, that enhance the functionality of the spreadsheet but some automation features. Other spreadsheets might open xlsm files as well, however they most likely wont be able to use the Excel specific formatting and macros.
XML
An xml file extension is commonly used for files written in Extensible Markup Language. An xml file is used in various areas of computer industry and many program languages are just derivatives of XML. These xml files can be opened and edited in any text editor or IDE.