XLSMHTML File Extension

What is XLSMHTML file?

XLSMHTML filename suffix is mostly used for Microsoft Excel MIME HTML Spreadsheet files. Microsoft Excel MIME HTML Spreadsheet specification was created by Microsoft. XLSMHTML file format is compatible with software that can be installed on Mac OS, Windows system platform. Files with XLSMHTML extension are categorized as Spreadsheet Files files. The Spreadsheet Files subset comprises 100 various file formats. Users are advised to use Microsoft Excel software for managing XLSMHTML files, although 2 other programs can also handle this type of file. Software named Microsoft Excel was created by Microsoft Corporation. In order to find more detailed information on the software and XLSMHTML files, check the developer’s official website.

Programs which support XLSMHTML file extension

The list that follows enumerates programs compatible with XLSMHTML files, divided into 2 categories based on operating system on which they are available. XLSMHTML files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with XLSMHTML extension?

Being unable to open files with XLSMHTML extension can be have various origins. What is important, all common issues related to files with XLSMHTML extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Download and install Microsoft Excel

The main and most frequent cause precluding users form opening XLSMHTML files is that no program that can handle XLSMHTML files is installed on user’s system. This issue can be addressed by downloading and installing Microsoft Excel or different compatible program, such as Microsoft Office. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading Microsoft Excel installed is by going to developer’s website (Microsoft Corporation) and downloading the software using provided links.

Step 2. Update Microsoft Excel to the latest version

If the problems with opening XLSMHTML files still occur even after installing Microsoft Excel, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Microsoft Excel is available. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. This can be one of the causes why XLSMHTML files are not compatible with Microsoft Excel. The latest version of Microsoft Excel should support all file formats that where compatible with older versions of the software.

Step 3. Associate Microsoft Excel MIME HTML Spreadsheet files with Microsoft Excel

If the issue has not been solved in the previous step, you should associate XLSMHTML files with latest version of Microsoft Excel you have installed on your device. The method is quite simple and varies little across operating systems.

Change the default application in Windows

• Right-click the XLSMHTML file and choose Open with option
• Click Choose another app and then select More apps option
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Microsoft Excel is installed. Now all that is left is to confirm your choice by selecting Always use this app to open XLSMHTML files and clicking OK.

Change the default application in Mac OS

• From the drop-down menu, accessed by clicking the file with XLSMHTML extension, select Information
• Find the Open with option – click the title if its hidden
• Select Microsoft Excel and click Change for all...
• A message window should appear informing that This change will be applied to all files with XLSMHTML extension. By clicking Continue you confirm your selection.

Step 4. Check the XLSMHTML for errors

Should the problem still occur after following steps 1-3, check if the XLSMHTML file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the XLSMHTML file for viruses or malware

Should it happed that the XLSMHTML is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. XLSMHTML file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the XLSMHTML file’s structure is intact

Did you receive the XLSMHTML file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the XLSMHTML file has been downloaded from the internet only partially, try to redownload it.

3. Check if the user that you are logged as has administrative privileges.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Microsoft Excel MIME HTML Spreadsheet file again.

4. Make sure that the system has sufficient resources to run Microsoft Excel

If the systems has insufficient resources to open XLSMHTML files, try closing all currently running applications and try again.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Microsoft Excel MIME HTML Spreadsheet file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle XLSMHTML files.

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