Please reverse the order of Open, Cancel buttons on your file browser dialog boxes so it matches what's most commonly expected for Windows users.
On Windows, the standard order for file browsing dialog boxes is Open, Cancel. The buttons are opposite this in your application. I'll note that your options dialog boxes are correctly ordered.
I very often mis-click the wrong button and lose my changes because of it.
Would you mind adding screenshots to original description to clarify what dialogs you're referring to. (Then people not very familiar can know what they are without looking for them in the program.)
Please reverse the order of Open, Cancel buttons on your file browser dialog boxes so it matches what's most commonly expected for Windows users.
On Windows, the standard order for file browsing dialog boxes is Open, Cancel. The buttons are opposite this in your application. I'll note that your options dialog boxes are correctly ordered.
I very often mis-click the wrong button and lose my changes because of it.