Excel & CSV Spreadsheet Cleaner and Validator for WhatsApp
Stop wasting hours fixing broken Excel formulas. FiltraZap Spreadsheet Studio automatically detects your phone column, standardizes country codes, strips landlines and dead numbers, and exports your clean file with Name, Email, and custom columns intact.
- Automatic phone column detection even in messy multi-column CSV files.
- Smart E.164 standardization: strips brackets, dashes, spaces, and fixes country codes.
- Selective column preservation: keep Customer Name, ID, Email, or City alongside verified numbers.
Clean Your List or Spreadsheet Now
Test up to 10 numbers instantly on our Single-Screen Homepage or upload full CSV/TXT files in the Dashboard.
Opens the Single-Screen Main Validator • Free Trial
🛒 B2B 50k Plan via Mercado Libre (Verified Store)🎥 Watch FiltraZap in Action (Official Video Tutorials)
See how to scrub Excel spreadsheets, prevent SIM bans, and cut costs on the Official WhatsApp Cloud API.
Designed for companies and agencies looking to purchase the 50,000-validation package directly via Mercado Libre.
⚡ Manual Excel Formulas vs FiltraZap Spreadsheet Studio
| Data Cleaning Step | Manual Excel Formulas | FiltraZap (Cloud 2026) |
|---|---|---|
| Verify if phone number has active WhatsApp today | ✕ Impossible (Excel only edits text, cannot query WhatsApp) | ✓ Real-time cloud validation with 99.9% accuracy |
| Strip landlines and disconnected mobile numbers | ✕ Manual guesswork that risks deleting valid leads | ✓ Automatic: keeps only verified active WhatsApp accounts |
| Clean parentheses, dashes, spaces & country codes | ✕ Requires complex regex or nested SUBSTITUTE formulas | ✓ Instant 1-click normalization before validation starts |
| Keep Customer Name & ID aligned with phone number | ✕ High risk of shifting rows when deleting cells | ✓ Visual Studio keeps every record 100% mapped to its row |
| Duplicate phone number removal | ✕ Repetitive manual cleanup on every file | ✓ Automatic deduplication before consuming credits |
How FiltraZap Spreadsheet Studio Works
1. Interactive Column Preview
Upload your CSV in the Dashboard to preview rows and choose which columns to keep, delete, or designate as the phone number.
2. Pre-Check Deduplication & Formatting
Before cloud verification begins, we strip special characters, normalize country codes, and remove duplicates to save your credits.
3. One-Click Segmented Export
Download only verified active WhatsApp contacts or the full audit report ready for your CRM or sender.
FAQ — Cleaning Excel & CSV Spreadsheets
How do I validate an Excel (.xlsx) file in FiltraZap?
Simply save your Excel sheet as "CSV (Comma delimited)" or copy and paste the phone column directly into FiltraZap.
Does the system remove duplicate numbers automatically?
Yes! FiltraZap automatically deduplicates your list so you never waste credits checking the same number twice.
Can I keep the customer Name and ID with the validated phone number?
Yes! Our Dashboard Spreadsheet Studio preserves all selected extra columns in your exported CSV.