Excel 2013 Second Window Location Problem

Question

 
Now that I have been upgraded to Office 2013 I have problems with opening more than one file at a time.
I use 3 monitors for working on multiple spreadsheets. Usually I display the files across two monitors and use the third for VBA window, or reading email, or other work. I often open multiple
files from the Windows Explorer.
If I open one file it will open to the size and location I closed the last Excel file, but if I open multiple files only the first opens correctly the remaining files always open on the far
right monitor (correctly sized) with half of each new window beyond the edge of the viewable desktop.

Answer 1

Hi FGauthier,
Have you ever try to save Document ,PPT file or Text file to the NAS? Does this issue only occurs with excel file?
what will happen if you copy the file to NAS instead of use the 'save as' feature within excel?
When you open the excel file, if it flagged as read-only, try to right-click the file, check if the read-only option is ticked. Also you can try to save the file as different file format to test this issue.
Also please check if you enable the preview pane, try to disable it . 
a) Open File Explorer.
b) Click on View Tab.
c) Click on Preview Pane to view\hide it.
Wind Zhang
TechNet Community Support