How to open XLSM files
Did your computer fail to open a XLSM file? We explain what XLSM files are and recommend software that we know can open or convert your files.
What is a XLSM file?
XLSM files are Microsoft Excel Open XML Format Spreadsheet files, which you can read more about below.
The XLSM file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a XLSM opener may not be able to open all kinds of XLSM files. In this case, though, we only know of one specific use.
Microsoft Excel Open XML Format Spreadsheet
Files that contain the .xlsm file extension are files that contain macro-enabled spreadsheet files that have been created with the Microsoft Excel spreadsheet application.
XLSM worksheets contain cells that are arranged in columns and rows. The spreadsheets with the .xlsm file extension also use embedded macros that have been programmed into the worksheet contained in the file.
The XLSM file format can only be used with the 2007 and later versions of Microsoft Excel. These versions of Excel use the Open XML format, which allows the creation of the XLSM files. Previous versions of Excel were unable to create XLSM macro-enabled worksheets.
Software that will open, convert or fix these specific XLSM files
XLSM file openers, viewers, etc.
These apps are known to open certain types of XLSM files. Remember, different programs may use XLSM files for different purposes, so you may need to try out a few of them to be able to open your specific file.