Xlm stands for Excel Macro files. These extensions can be opened by Microsoft Excel application.
Microsoft Excel uses macros for making process faster. You may need to change your files to Macro. In this case you should follow some steps:
You can use these options in order.
Tools > Macro > New Macro
Besides, you have chance to run XLM files with Microsoft Excel application.
What to use xlm
which page related to xlm file
xlm Related Searches
You can check related links about xlm fileextension.