New Post: ANY search via the Search Query Tool returns ALL rows

Same behavior with the 2.5 tool. Glad I didn't waste everyone's time. Here is what you were asking for:

Query Modification: (FileExtension:doc OR FileExtension:docx OR FileExtension:xls OR FileExtension:xlsx OR FileExtension:ppt OR FileExtension:pptx OR FileExtension:pdf) (IsDocument:"True" OR contentclass:"STS_ListItem")