> For the complete documentation index, see [llms.txt](https://help.metaforms.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.metaforms.ai/open-end-cleaning-and-coding/introduction-to-oe-coding/step-2-upload-and-map.md).

# Step 2: Upload & Map

#### Phase 1: Upload response files

1. Click the upload zone or drag and drop your .xlsx files
2. The system processes each file, extracting sheets, columns, and row counts
3. You'll see each file listed with its sheets and column names
4. Upload as many response files as needed

<figure><img src="/files/BQ7DpoVNxU2yN9qBBZvY" alt=""><figcaption></figcaption></figure>

#### Phase 2: Analyze mappings

1. Click Analyze Mappings
2. A confirmation dialog appears: "Analyzing will lock your response files. You won't be able to change them after mapping is confirmed."
3. Click Confirm to proceed
4. The AI matches each response column to a questionnaire question
5. Wait for analysis to complete — results appear automatically

#### Phase 3: Review mappings

The mapping table shows:

<figure><img src="/files/QVxPJ6VE1d1fnSW8ZC3E" alt=""><figcaption></figcaption></figure>

Actions:

* Click any matched question to change the mapping
* Click Add Mapping to manually map an unmapped column
* Delete incorrect mappings with the trash icon

#### Phase 4: Confirm mappings

1. Review all mappings — resolve any warnings or errors
2. Click Confirm Mappings

▎ Important: After confirming, both your questionnaire and response files become permanently locked for this session. You cannot add, remove, or change files. If you need different files, start a new session.


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