Hygiene & Governance

Spreadsheet Data Quality Checker: Comprehensive Quality Audit & Hygiene Report

Data governance officers, analytics leads, and consultants validating client datasets before loading into production ERP or BI systems.

Dedicated Spreadsheet Data Quality Checker Engine

🔒 100% In-Browser Memory • Zero Server Upload

Drop your workbook to calculate an instant 0-100% Data Health Score

Runs 12 automated audits across duplicates, date integrity, whitespace defects, and formula errors with verified audit reporting.

Try Demo: Spreadsheet Data Quality Checker →

Supported formats & specifications:

.XLSX .CSV .XLS .TSV Max 50MB Up to 100,000 Rows Client-Side Sandbox

Key Capabilities & Built-In Algorithms

Automated rules calibrated for this specific spreadsheet operation:

Executive Health Score: Generates an instant 0-100% Data Hygiene Score based on defect severity

Confirmed vs Potential Issues: Clearly separates definite errors (like duplicate rows) from ambiguous entries requiring review

Pre-Flight Import Audit: Validates schema rules before uploading data into Salesforce, HubSpot, or Snowflake

Certified Audit Trail: Download an auditable JSON/Excel compliance log of all data inspections

How We Calculate Your Spreadsheet Hygiene Score

SheetFix AI evaluates dataset health using a weighted penalty model. High-severity defects like duplicate rows (-4% each) and broken formulas (-3% each) severely degrade data integrity. Medium-severity defects like mixed date formats (-2%) and low-severity whitespace padding (-1%) are highlighted with recommended automatic repairs, letting you elevate your score to 100% in seconds.

Realistic Before-and-After Demonstration

Notice how raw defect rows are specifically transformed by the Spreadsheet Data Quality Checker engine:

Live Engine Verification

Raw Input Data (With Spreadsheet Data Quality Checker Defects) Raw Defects

Audit Dimension	Threshold / Rule Tested	Issues Found in Dataset	Severity Level	Automated Repair Status
Row Uniqueness	Exact & composite duplicate detection	24 duplicate rows detected	HIGH (Critical)	Safe keep-first elimination ready
Date Integrity	Mixed DD/MM vs MM/DD & 5-digit serials	18 date format inconsistencies	HIGH (Critical)	Auto-convert to ISO YYYY-MM-DD ready
Whitespace Hygiene	Leading, trailing & ASCII 160 NBSP spaces	56 cells with ghost spaces	MEDIUM (Warning)	Auto-trim & collapse ready
Numeric Schema	Text-formatted numbers & currency symbols	31 numbers stored as text	HIGH (Critical)	Convert to native numeric ready
Ghost Rows & Blanks	Empty rows beyond active data boundary	7 completely blank rows	LOW (Efficiency)	Safe purge ready

Sanitized Output (Standardized by SheetFix AI) Cleaned Output

Audit Dimension	Threshold / Rule Tested	Issues Found in Dataset	Severity Level	Automated Repair Status
Row Uniqueness	Exact & composite duplicate detection	0 Duplicate Rows Remaining	PASSED ✓	24 duplicates removed with keep-first
Date Integrity	Mixed DD/MM vs MM/DD & 5-digit serials	0 Date Anomalies Remaining	PASSED ✓	Harmonized to ISO 8601 (YYYY-MM-DD)
Whitespace Hygiene	Leading, trailing & ASCII 160 NBSP spaces	0 Whitespace Defects	PASSED ✓	All cells trimmed & normalized
Numeric Schema	Text-formatted numbers & currency symbols	0 Text Numbers	PASSED ✓	Converted to IEEE 754 numeric floats
Ghost Rows & Blanks	Empty rows beyond active data boundary	0 Ghost Rows	PASSED ✓	All 7 empty rows safely purged

Transformation Summary: Spreadsheet Health Score elevated from 64% (Needs Remediation) to 100% (Production Ready) across all 5 key dimensions with zero data loss.

Step-by-Step Spreadsheet Data Quality Checker Instructions

Clean and repair your data in four intuitive visual steps:

Upload Workbook for Quality Audit

Scan any spreadsheet in seconds without creating an account or installing software.

Review 0-100% Health Score

Inspect your hygiene rating with confirmed vs potential defect breakdowns.

Execute Automated Fixes

Apply suggested cleaning rules with transparent before-and-after cell diffs.

Download Pristine File & Audit Trail

Export your sanitized workbook alongside a compliance audit trail.

Frequently Asked Questions About Spreadsheet Data Quality Checker

Addressing technical edge cases, formula behavior, and security for this tool.

The score is a weighted penalty metric evaluating duplicates (4x), formula errors (3x), date anomalies (2x), whitespace defects (1x), and ghost rows (2x) relative to total cell count.

Confirmed issues are definite defects (like identical rows or #VALUE! cells). Potential issues are ambiguous items (like dates that could be DD/MM or MM/DD) requiring user confirmation.

Yes. Download a timestamped audit trail detailing every transformation executed.