FREE SPREADSHEET QUICK WIN — FICTIONAL WORKED EXAMPLE
DC Health Check LLC

TRY USEFUL WORK FIRST
The free preview fixes one agreed issue in one redacted XLSX sheet or CSV, up to 100 data rows. You receive the corrected preview, change notes, and validation checks. One free preview per business, confirmed during scope review. No card and no obligation. You keep the preview. We agree the issue, file-transfer method, and delivery slot before work begins; submitting a request does not book a slot.

All records, order IDs, product codes, dates, and amounts here are invented. This demonstrates the deliverables, not a customer result or a claim of customer savings.

FILES
01-before.csv: fictional source data, with source_row identifying its physical row in the original CSV (the header is row 1).
02-repaired.csv: the corrected preview. Each retained source_row lets you trace the row back to the original.
03-change-log.csv: the agreed correction and its effect on the total.
04-checks.csv: expected and actual row-count, duplicate, uniqueness, amount, and preservation checks.

ONE AGREED ISSUE
This fictional source owner has confirmed that every order should appear once. The issue is one exact duplicate order record. Remove a copy only if every business field matches; ignore source_row in that comparison because it records provenance. Nonidentical records with the same order ID would need review and would not be silently removed. All retained business fields stay unchanged. No other issue is repaired in this preview.

READ THE RESULT
The input has 6 data rows and a reported sum of USD 327.50. Removing the extra copy of ORD-1002 subtracts USD 60.00. The corrected preview has 5 data rows totaling USD 267.50: 327.50 - 60.00 = 267.50. The change log records the removed source row. The checks verify that each retained record matches the original and each line amount equals quantity times unit price.

HOW TO INSPECT
Open the CSVs in a spreadsheet program or text editor. Import as UTF-8 with comma delimiters and periods for decimals. Import order IDs, product codes, and dates as text if you want exact formatting preserved. Dates use YYYY-MM-DD. No formulas, macros, scripts, client data, or external connections are included. Checks are recorded as values and can be independently recomputed.

ONLY IF THE WORK IS USEFUL
An optional USD 199 full repair covers one accepted workflow, up to 5 sheets and 10,000 data rows total, and up to 5 agreed issues. It includes the repaired file, a change log, validation checks, and one correction round within 7 days. The scope and available delivery slot are confirmed in writing before payment. Paid repair delivery is within two business days after scope, file, and payment are accepted for that confirmed slot. The free preview does not start a paid project or enroll you in monthly care. Separately scoped USD 749 report setup and USD 249 monthly care are available later if useful.

START WITH A DESCRIPTION
https://dchealthcheck.com/spreadsheet-rescue/
michael@dchealthcheck.com
Do not send a file until we agree the scope and transfer method. Use a redacted sample. Do not include payroll, health, payment-card data, or account credentials.