How to open 491 files
Did your computer fail to open a 491 file? We explain what 491 files are and recommend software that we know can open or convert your 491 files.
What is a 491 file?
The 491 file extension indicates to your device which app can open the file. However, different programs may use the 491 file type for different types of data.
While we do not yet describe the 491 file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about 491 files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
These apps are known to open certain types of 491 files. Since many different programs may use 491 files for different purposes, you may need to try a few of the apps to open your specific 491 file.
|Creo Elements/Pro||User submitted|
|Pro ENGINEER||User submitted|
|Startup TOOLS||User submitted|
|UltraZip UI||User submitted|