Upload XLSX or CSV
Start with the format your customer sent instead of rebuilding the questionnaire in another workspace.
Excel security questionnaire
Automate Excel security questionnaires without losing your spreadsheet workflow
Customers still send XLSX security questionnaires under deadline. ProofFill is built for that reality: upload the spreadsheet, upload evidence, preview coverage, generate after payment, review, and export a completed XLSX.
Coverage preview
Sample questionnaire output
Data encryption at rest?
Evidence-backed91%review_ready
Incident response SLA?
Weak evidence58%needs_review
Do you support SSO?
No evidence found0%missing_evidence
An XLSX-first questionnaire flow
Detect the spreadsheet shape
The app identifies question text, answer columns, categories, and reviewer notes where possible.
Export cannot be an afterthought
Many buyers want the same spreadsheet back, so ProofFill treats XLSX output as a core workflow.
Spreadsheet preview flow
- 01
Preview coverage
ProofFill shows count, categories, missing evidence, and sample answers before full generation.
- 02
Generate after payment
The full answer set stays gated until the buyer pays for the completed workflow.
- 03
Review and export
A human reviews cited answers and exports the completed XLSX for the customer.
FAQ
Can ProofFill preserve my original Excel file?
The intended workflow is XLSX-first, preserving the buyer's spreadsheet workflow as much as possible.
Can I edit answers before export?
Yes. The review step should let a human edit or approve generated answers before downloading the final file.