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GouYL
@gouy1l
Excel and CSV Cleanup, Data QA and Reconciliation
China
English
About me
I clean and reconcile Excel and CSV files while preserving the original data and making every change reviewable. My workflow covers duplicate flags, blank and type-anomaly checks, agreed date and number normalization, cross-sheet matching, and compact summaries. Deliverables include a cleaned file plus a QA/change log with row counts, exceptions, and reconciliation checks. I use redacted samples, flag uncertain values instead of guessing, and confirm scope and acceptance rules before work begins. My portfolio examples are self-initiated synthetic-data demonstrations, not paid client work.
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GouYL
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Data Cleaning
I will clean and validate excel or CSV data with a QA report
