Correct OCR Errors When Converting a Table Image to Excel

What the error actually means

Optical character recognition estimates text from pixels. Low resolution, skew, shadows and grid lines can turn 0 into O, 1 into l, or decimal points into noise. The resulting spreadsheet may be well formed while containing incorrect values.

Likely causes

• The image is blurred or angled.
• Grid lines touch characters.
• The table uses small or decorative text.
• Handwriting or stamps overlap cells.

A safe repair workflow

1. 1Use the clearest, straightest image available.
2. 2Extract a representative sample.
3. 3Validate numeric and identifier columns with rules.
4. 4Manually compare flagged cells with the image.

How to verify the result

A file that downloads successfully is not automatically a correct file. Check the result at both the structural and business-data levels:

• Totals reconcile.
• IDs match expected patterns.
• No row or column is missing.
• Low-confidence values are reviewed.