Exclusions

The 'Excluded Items' button on the toolbar opens a list of items that have been removed from the project. This means they are not made available for filing/categorizing, and do not appear in the 'Available Topics' list. Such items could be files or folders; when a folder is excluded, all its files and subfolders are excluded; only the folder is listed as excluded, not its subelements.

What's Excluded
Some files are excluded automatically, like the entry page (not a topic), or .EXE, .GIF, .JPG, etc. files, or files with non-web encodings, or, in general, any file not conforming to a standard web page. But .PDF and Word documents are accepted.

In addition, the list of excluded items may contain files you excluded manually (right click on a topic or selection). All such files appear as 'valid' in the excluded files' list; they can be restored.

Restoring Excluded Files
Any file in the list that has a valid type ('valid' in the 'Type' column of the list) can be restored to the project. This means that it will be removed from the excluded files' list and added to 'Available Topics'.

Excluding a Filed Topic
When you exclude a filed/categorized topic (right-click), all instances are removed from TOC, the topic is removed from the index, and all terms based on this topic are removed. Then the topic is added to the 'Excluded Items' list as 'valid'.