Which Excel Header/Footer Extraction option slows text extraction?

The choice to extract and place inline significantly slows text extraction because it requires the system to integrate the header or footer information directly within the document's existing text flow. This process often necessitates additional parsing and formatting, as the extraction must carefully maintain the original layout of the document while inserting the extracted content. This computational overhead can lead to increased processing time, especially in longer documents where consistent formatting is critical.

In contrast, other options such as extracting and placing at the end or the start are typically more straightforward because they do not involve altering the existing text structure but rather append or prepend the extracted content. The "Do not extract" option is the fastest since it bypasses the extraction altogether. By choosing inline placement, text extraction becomes a more complex task necessitating careful integration, resulting in a slower overall extraction process.