I cannot open a SUM file. What should I do? Help!
Virtually anyone has encountered some problems with opening unknown files while working on a computer. It can be very frustrating. Yet such problems, not only with SUM files, can be addressed in a standard way. Follow the steps below and we can guarantee that your problem with opening SUM will be resolved!
SUM File Extension
- File type Garmin Checksum Format
- File developer Garmin
- File category Misc Files
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File popularity rating
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How to open SUM file?
If given user account does not have necessary permissions to open files with SUM extension, it is highly probable that no program that supports given files is installed on the users’ system. Below is a list of actions user should pursue in order to resolve most common problems.
Step 1. Download and install application that supports SUM files
After the application has been installed, the system should automatically open SUM files with given application. Below is the list of relevant programs along with operating systems they are available for:
Programs that support SUM files
Step 2. Verify whether SUM files are associated with appropriate software
It is possible that an application that supports SUM files is not associated with such files. In such case, the program should by manually associated with SUM files (right-click on the file icon → Properties → General Tab → In submenu "Open with" and click on "Change" button. System will display a list of suggested programs that support SUM files. Choose the application by checking the box "Always use the selected application to open this kind of files". System will store this information in its registry and use it to open SUM files with the selected program.
Changing SUM file association in registry
File association for SUM files can be edited manually by editing appropriate entry in Windows System Registry. However, it is discouraged as it may introduce errors to registry if not done properly and may even damage the system.
Step 3. Check SUM file for other errors
- SUM file was not copied properly from storage medium.
- Antivirus application prevents opening SUM files. In that case it is recommended to exercise extreme caution and recover or delete infected SUM file. It is also advised to scan the entire system for malicious software and viruses with antivirus software.
- For SUM files downloaded from the internet it is advised to check if the file has been downloaded completely and is not corrupted. If not, the file should be re-downloaded.
