NEV only showing one tab of an Excel file - content missing!

When viewing an Excel file in Nuxeo additional tabs are seen as additional pages. When looking at an Excel file with multiple tabs in the Annotation (NEV) only one of those tabs are seen. Looks like either the first or last tab from what I can see based on the content. This can be a major issue from some clients including Nationwide DAM.

To reproduce:
1. Import the attached files.
2. In View notice the entire content of the documents are seen and data in separate tabs are seen as separate pages.
3. Go to Annotations. Notice only 1 page is seen instead of multiple. For the file nfsdamcounts.xlsx only the last tab is seen. For the file NEV Test Excel.xlsx the first tab is seen.

Expecting all tabs and pages of the excel document are seen in Annotations. Actual only one tab (page) is seen.