SheetLckrSheetLckr

· Mission statement · DOC-MS-001

We don't replace your spreadsheets. We vouch for them.

Quality teams have been told for two decades to abandon Excel. They never did — because it works. SheetLckr was built for the people who actually run quality on spreadsheets, not the consultants who tell them to stop.

INSPECTION REPORT · ORIGIN STORY✓ APPROVED
Subject
The case for SheetLckr
Inspector
Founders
Plant
Stockholm, SE
Issued
2023-09-12

Two engineers — one in automotive, one in pharma — kept seeing the same finding: "no evidence of who changed the workbook". The fix was always the same: more meetings, more screenshots, more SharePoint folders nobody opened.

We built SheetLckr to put the evidence inside the cell, where the work actually happens. Six months in a real plant, then twelve more in three. Today it's the layer under hundreds of workbooks across QMS-regulated industries.

· Revision history

The folded story.

  1. · 2019

    The failed audit

    An IATF 16949 surveillance audit found 14 nonconformities — every single one on a spreadsheet.

  2. · 2021

    First prototype

    Two engineers, one Excel add-in, a logbook of every cell change. Pinned at the plant for six months.

  3. · 2023

    SheetLckr v1

    Officially shipped. ISO 9001 plants stop printing screenshots.

  4. · 2025

    AS9100 + 21 CFR 11

    Added aerospace and pharma. Tamper-evident seals, validated pipeline.

  5. · 2026

    You

    Your spreadsheets, finally audit-ready.