FINDSTR example multiple file types searched in one line

FINDSTR example multiple file types in one line

Example:
Looking for "2.6.2.12296" in files with extensions .cs, .txt, .xml, .csproj, .vbproj
findstr /s /i /c:"2.6.2.12296" *.cs *.txt *.xml *.csproj *.vbproj