How to open a file with .SY# extension?

File Type : Darn! Backup Files
Compatible with (Win10, Win8, Win7, Vista and WinXP)

You'll need a new app to open this .SY# file

Searching for the right program to open .SY# files?

"You'll need a new app to open this file" is probably the most common error faced by millions of Windows users every day. This is either because the program required to open a file is not available on your system or there may be other issues.

We recommend that you run a free scan to check for missing drivers.


What is .SY# file extension?

File created by Simplexety, an advanced calculator used for evaluating mathematical functions and for plotting graphs; contains mathematical parameters entered into the user interface and can be used for saving and sharing results. When you save an SY file, an .SP parameters file is also saved alongside. You can use either the SY or SP file to reopen the content in Simplexety.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.

Software that can be used to open SY#files:

  • Simplexety