Automatically Categorize 5,000 Blog Comments by Topic in Excel
When comment volume grows, the real value is not reading every message individually. It is turning the discussion into patterns. BatchGPT helps you classify comment rows into a consistent topic taxonomy so content and community teams can act on the signal faster.

Why Topic Classification Belongs in the Spreadsheet Review Loop
Teams often already use Excel to export comments, filter conversation themes, and prepare reports. A repeatable topic-classification prompt fits that flow well because every row uses the same taxonomy and the results stay easy to audit.
How to Use the BatchGPT Excel Add-in for This Workflow
- Write the prompt that tells the add-in what to do with each selected cell value.
- Select the Excel cells or range you want to process. For larger datasets, work in clean batches of rows.
- Choose the output column and adjust optional settings such as reasoning effort or web search when the task really needs them.
- Click Generate so the add-in processes each selected cell separately and writes the result to the output column you chose.
- Review the results in Excel, refine the prompt if needed, and rerun only the rows that need another pass.
Prompt Example for Topic Categorization
Give the model a fixed list of topics so the labels stay stable across rows.
Categorize this blog comment into one primary topic:
Allowed topics:
- pricing
- product_feedback
- support_issue
- feature_request
- content_question
- off_topic
Return labeled output with:
- primary_topic
- confidence (1-10)
- short_reasonSample input row:
A2: I like the article, but I still cannot find where to export my report as CSV.Sample output row:
primary_topic: support_issue
confidence: 8
short_reason: commenter asks for help with an export workflow.How to Process a Very Large Comment Set Without Losing Control
If you have a dataset in the thousands, a staged spreadsheet workflow is safer than a blind full-sheet run.
- Lock down the topic list before you scale, otherwise labels drift and reporting gets noisy.
- Work through the full dataset in manageable ranges of selected rows so you can spot taxonomy mistakes early.
- Use confidence or review flags for ambiguous comments instead of forcing every row into a bad label.
- Refine the taxonomy once, then rerun only the affected rows instead of reprocessing the entire workbook.
FAQ
Can I classify a dataset of 5,000 comments with this approach?
Yes. The practical way is to process the full dataset in repeatable batches of selected rows while keeping the same taxonomy and review rules.
Can I force categories from a fixed list?
Yes. In fact, that is the recommended approach because fixed labels make the outputs easier to analyze and compare.
Can I include a confidence field?
Yes. Confidence or review flags are useful when comments are short, ambiguous, or span multiple themes.
Is this only for blog comments?
No. The same workflow works for survey comments, app feedback, community posts, and support message exports.
Turn Comment Volume Into Topic Signals in Excel
BatchGPT is useful when every row needs the same topic-classification logic. Define the taxonomy once, process a clean selection of comment rows, and review the resulting labels directly in your workbook.
Get started!