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Excel - single window, more files
How difficult it is to convince Microsoft team to fix major problems? I've recently switched to new Excel and I'm ...amazed. We used to be able to open multiple files, sheets in the same window. Ope...
Hi CodeKamil
I've recently switched to new Excel...
You were probably running Excel <= 2010 that was using a Single Document Interface (SDI). Since Excel 2013 the latter uses a Multiple Document Interface (MDI) - see Comparing Single and Multiple Document Interfaces for more info.
Is it possible to convince Microsoft that they should find a solution to problem they created?
The above article should answer your question