Tool 03

📅 Fix Date & Number Formats

Excel often turns long numbers into scientific notation and misreads dates. This tool detects and fixes both — right here, no upload required.

🔒 100% offline — your file never leaves your computer

No internet connection needed. Nothing is uploaded — try it with your Wi-Fi off.

📄

Drag it into this box, or click below — .xlsx, .xls, .csv

Options

Fix scientific notation numbers

Converts values like 1.23E+11 back to full numbers (e.g. long IDs, phone numbers)

Restore leading zeros

Fixes codes and zip codes that lost their leading zero (e.g. 0123 became 123)

Standardize date format

Detects date-like text and rewrites it in one consistent format

Date output format:

Takes only a few seconds

✓

Rows processed

Numbers fixed

Dates standardized

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