How to open .sum file format?

The probably reason why you are at this website is a problem with opening .sum file. The full name of the file is Garmin Checksum File. If the double-click on the file’s icon shows you a message that additional programs are needed to open the file, you’ll find the list of helpful programs in the bottom of the page.The developer of this format is Garmin.

.sum file extension (Garmin Checksum File)

Category Developer/Producer File description Popularity
Misc Files Garmin Garmin Checksum File
Programs using this file extension: .sum
ADS OS Software
  • Garmin Connect

The file extension .sum can be used by another programs. If you have some useful information about .sum file type that may help other users, please send them to us and we’ll update our database.

Visiting our website you are probably asking yourself:
  • What application can open .sum file?
  • How to open .sum file?
  • What is .sum file?
  • How can I convert .sum file?
  • Where can I find informations about .sum file extension?
We hope we have given you enough informations about this file type. Otherwise you can search some informations about .sum extension on or