File formats: Uppercase file types when importing a file. (#10977)

* Added uppercase extensions for supported formats

In the file App\Application.cpp

* Added file types in upper case

* Adds uppercase file types to the file import filter.

Fixes #10879

* Added filter for *.fcmacro *.fcscript

src/Mod/Spreadsheet/Init.py

@@ -35,6 +35,6 @@ ParGrp.SetString("WorkBenchName", "Spreadsheet")
 ParGrp.SetString("WorkBenchModule", "SpreadsheetWorkbench.py")
 
 # add Import/Export types
-App.addImportType("Excel spreadsheet (*.xlsx)", "importXLSX")
+App.addImportType("Excel spreadsheet (*.xlsx *.XLSX)", "importXLSX")
 
 App.__unit_test__ += ["TestSpreadsheet"]