SMI File Extension

What is SMI file?

SMI is a text file that stores source code written in SMIL language. SMIL is commonly used for creating multimedia presentations and slides. SMI files also contain all the multimedia resources used for given presentation. SMIL syntax offers functions to animate objects, perform visual transitions, define page layout, synchronization rules, and object embedding. SMIL is also used for composing MMS messages.

SMIL language

SMIL is one of the standard promoted by W3C. SMIL is a standardized markup language that offers syntax similar to HTML. SMI file format was created to provide backward compatibility with SMIL 9.3 format. SMI is based on XML. Current SMI version is 3.0.

Programs which support SMI file extension

Below you will find an index of software programs that can be used to open SMI files divided into 3 categories according to system platform supported. Files with SMI suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Updated: 01/22/2023

How to open file with SMI extension?

There can be multiple causes why you have problems with opening SMI files on given system. What is important, all common issues related to files with SMI extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with SMI files.

Step 1. Get the ACDSee

The most common reason for such problems is the lack of proper applications that supports SMI files installed on the system. This one is an easy one. Select ACDSee or one of the recommended programs (for example, RealPlayer, QuickTime Player, Ambulant Player) and download it from appropriate source and install on your system. Above you will find a complete listing of programs that support SMI files, classified according to system platforms for which they are available. If you want to download ACDSee installer in the most secured manner, we suggest you visit website and download from their official repositories.

Step 2. Verify the you have the latest version of ACDSee

If you already have ACDSee installed on your systems and SMI files are still not opened properly, check if you have the latest version of the software. 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 SMI files are not compatible with ACDSee. The latest version of ACDSee should support all file formats that where compatible with older versions of the software.

Step 3. Assign ACDSee to SMI files

After installing ACDSee (the most recent version) make sure that it is set as the default application to open SMI files. The next step should pose no problems. The procedure is straightforward and largely system-independent

Change the default application in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the SMI file
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where ACDSee is installed. Now all that is left is to confirm your choice by selecting Always use this app to open SMI files and clicking OK.

Change the default application in Mac OS

• From the drop-down menu, accessed by clicking the file with SMI extension, select Information
• Open the Open with section by clicking its name
• From the list choose the appropriate program and confirm by clicking Change for all....
• Finally, a This change will be applied to all files with SMI extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the SMI file is complete and free of errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the SMI file in question. It is probable that the file is corrupted and thus cannot be accessed.

1. Verify that the SMI in question is not infected with a computer virus

If the SMI is indeed infected, it is possible that the malware is blocking it from opening. Scan the SMI file as well as your computer for malware or viruses. SMI file is infected with malware? Follow the steps suggested by your antivirus software.

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

If you obtained the problematic SMI file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. When downloading the file with SMI extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

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. Log out of your current account and log in to an account with sufficient access privileges. Then open the SMIL Presentation file.

4. Verify that your device fulfills the requirements to be able to open ACDSee

The operating systems may note enough free resources to run the application that support SMI files. Close all running programs and try opening the SMI file.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with SMIL Presentation file. It may be the case that the SMI files work properly with updated software that addresses some system bugs.

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