How to open .XLSM file extension?

If you cannot open a new file that has been saved in the .XLSM format you need to download the appropriate software. The manufacturer of .XLSM files is Microsoft; .XLSM files belong to the Spreadsheet Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .XLSM files. Activities performed in the order described should solve the problems with all the files in the .XLSM format.

• What is .XLSM file?
• How to open .XLSM file?
• What is .XLSM file?