File types can be excluded from indexing, meaning that documents with the excluded file types are not processed by full-text indexing and are not available for full-text searches.
The following behavior applies to excluded file types:
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Setting excluded file types is day-forward. It does not remove existing documents from full-text catalogs.
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Add and re-index processing actions are not performed on documents with excluded file types. However, documents with excluded file types can still be removed.
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Documents with the excluded file types that were already indexed will still return results for full-text searches.
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Documents with the excluded file types that were already indexed will still be processed, including add, remove, or re-index processes.
To exclude specific file types from indexing processes: