Plain Text (TXT) contains raw Unicode or ASCII characters with no embedded formatting, fonts, or layout information. NUMBERS file (NUMBERS) stores data in the NUMBERS format. This extracts structured tabular data from the document into an editable spreadsheet format. Metadata such as creation date and embedded colour profiles is preserved where the target format supports it. The result is a standard NUMBERS file readable by any compatible application. 1converter handles TXT-to-NUMBERS conversion server-side: files are uploaded over HTTPS, processed on isolated cloud infrastructure, and the converted output is available for download for 24 hours before automatic deletion. No account is required for standard conversions.