Spreadsheet Preflight is a read-only quality check for important spreadsheets. Run it before a report, handoff, client delivery or management review to find calculation risks while the workbook context is still visible. WHAT IT CHECKS • Find cells that currently evaluate to formula errors. • Flag hard-coded values that interrupt a formula-dense column. • Find suspicious blank gaps between formulas. • Identify formulas that differ from the dominant pattern in a column. • Navigate directly from each finding to the exact sheet and cell. • Review the current workbook without changing its contents. HOW IT WORKS Open the add-on from Extensions inside Google Sheets™, choose Run preflight, review the results, and navigate directly to any location that needs attention. PRIVACY • Access is limited to the spreadsheet where the user runs the add-on. • Workbook content and findings are not sent to Tidy Work Labs servers. • Workbook content and findings are not retained by Tidy Work Labs. • The add-on does not modify formulas, values, formatting or sharing settings. LIMITS • Scans are bounded to 150,000 used cells per run. • The add-on is available in desktop Google Sheets™ because Editor add-ons are not available in the mobile editor apps. • Findings are review prompts and are not a guarantee that every spreadsheet issue will be detected. PRICING Free during the early-access release. No payment details are required. Any future optional paid plans will be disclosed before they take effect. SUPPORT Setup: https://tidyworklabs.com/setup/spreadsheet-preflight Support: https://tidyworklabs.com/support Privacy: https://tidyworklabs.com/privacy Tidy Work Labs is an independent developer. This product is not affiliated with or endorsed by Google. Google Sheets™ is a trademark of Google LLC.