Search inside OneNote attach files

1. Click the "Search Inside Attach Files" feature.
2. Selected the notebooks or sections which we want to search in.
3. Choose the file format type, now support:  .txt, .rtf, .doc, .docx, .ppt, .pptx, .xls, .xlsx
4. Input the keywords, multiple keywords separate with space.
5. Click the Start button.

After searched, It will list the attach files with the keywords, click the file in list will jump to OneNote page.