I found this in my history but I don't use this. What is it

[Mrsweber2016]

I found this in my history. I don't use this program and certainly do not hide things so why is this there? What is it?
Is my daughter hiding things ? Why does it say hidden?
Used com.hancom.office.editor.hidden

 

[n0tall0wed]

It's built into samsung phones for the secure folder feature. So it was already on the phone.