Issue Summary

Pages with ":" in the title are not able to show the list of attachments on the page in Office Excel macro. All other macros are able to list the attachments, it would be great if we could include the same functionality for the Office Excel macro

Steps to Reproduce

1. Create a page with the title "Project : Plan"
2. Save the page
3. Add excel attachments to the page example: test1.xls, test2.xlxs
4. Now edit the page, add "Office Excel" macro 

Expected Results

In the Office Excel macro, you should be able to see the list of attachments available under the File Name field.

Actual Results

We are not seeing the list of attachments available, it shows empty.

Workaround

Remove the ":" from the page title, and you will be able to see the list of attachments without any issues.