Unknown file extension can be a source of various problems. However, identifying the causes of problems with XLSM files and addressing them isn’t necessary a complicated process. This article will describe 5 simple steps that will let you address problems with XLSM files.
The .XLSM extension is typical for spreadsheet files created with the help of Microsoft Excel included in the Microsoft Office software. The file saves in XML format not only data on rows and columns and their formatting, but also macros that allow simple coding of repetitive functions.
Typically in order to open .XLSM files it is sufficient to follow these simple steps: find, download, and install appropriate software. Then, by double-clicking on the file icon, open the file. System should automatically associate XLSM file with appropriate software. Below is the list of programs required to open files with XLSM extension:
If given file with XLSM extension is not infected, it is possible that the antivirus software is blocking access to the file. User should take necessary precautions and follow the steps suggested by the system. After recovering or removing the infected file it is recommended to scan the entire system for viruses. Yo will have to acquire a new, clean version of XLSM file.
Be advised that you can always consult an IT expert for help. Some problems with XLSM files can be hard to solve for less sophisticated users. Also, you can ask for help one of the developers of software that supports files with XLSM extension. In order to do so, go to software’s subpage and search for software’s developer website address
If the XLSM file has not been downloaded properly it is not possible for the software to open such file. Check the file size in the location from where you downloaded the file in question. If the size of the original file differs from the size of downloaded XLSM file, you will have to download the file again.
If the system registry has no entry related to default program that should be used to open XLSM files, even though given program is installed on the system, then XLSM files must be associated with the application in question.
Associating files with applications is performed similarly regardless of the type of system and consists in selecting an application which should be used for opening given type of files. In order to associate XLSM files with given application, right-click the file icon and select form the context menu "Open with" option, which will display a list of suggested programs. Select your program from the list. If the application is not on the list, use the "Browse" button and point to the location of the application. Checking "Always use selected application to open this kind of files" option will set selected application as the default application for opening given files.
It is possible that the storage medium on which the file is located is damaged or corrupted. Try scanning the storage medium for errors.