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What Excel breaks

App empty state highlighting where Excel risk preview appears after upload — After you upload, FinchFile shows which columns Excel would damage — before you pay.

Opening a CSV in Excel often “helps” in ways that destroy data:

Leading zeros — ZIP 01234 becomes 1234.
Long IDs — become scientific notation (1.23E+15).
Dates — ambiguous strings get coerced to Excel date serials.

FinchFile detects these risks, shows a before/after preview, and exports a typed .xlsx so values stay intact.

Upload your export.
Read the comparison table (Your file vs Excel vs Fixed).
Download the fixed workbook when you’re satisfied.