How toAgents & ToolsSuperhuman · 2h ago
How to create a custom spreadsheet cleaning web tool with Claude Opus 5.5
Learn how to build an interactive web app using Claude Artifacts to automatically reformat messy exported spreadsheets. This workflow allows non technical professionals to quickly fix missing fields, dates, and duplicates without manual edits.
Try it yourself
- 1Open Claude and select the Opus 5.5 model option.
- 2Start a new session and request the assistant to construct an interactive web application as an Artifact.
- 3Outline your data cleaning requirements including spreadsheet file formats, duplicate removal rules, and date formatting preferences.
- 4Direct the assistant to generate user interface buttons for uploading files, inspecting raw data, applying cleaning rules, and downloading output.
- 5Upload a sample file containing missing fields or formatting errors to test the newly created Artifact.
- 6Review the cleaned results, report any edge case handling issues to the model, and store or share the final tool.
Copy this prompt
Build an interactive CSV cleaning web tool as an Artifact. Provide controls to upload a CSV file, preview raw rows, trigger standard data cleaning, review a summary of changes, and download the finished CSV. Program the cleaning logic to drop duplicate and completely blank rows, trim excess whitespace, standardize capital letters and date formats, and highlight blank entries without creating false records. Ensure the interface is clear and straightforward for users without coding skills.
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