Product

Ask Derek to build, fix, explain, or find any spreadsheet

Derek combines expert spreadsheet help inside the workbook with organizational search across every spreadsheet your finance team can access.

One expert, three places

Use Derek wherever the work starts

Open Derek beside a workbook in Excel or Google Sheets. Use the web app when the question starts across files: find the model, compare versions, trace the number, or reuse prior analysis.

Derek Web App

Find the latest board forecast and explain the change in Q3 revenue.

Searching finance workbooks

I found the active model and traced the change to expansion revenue and the revised churn assumption.

FilesSearch resultsFocus

98 relevance

FY26 Board Forecast v12

Primary forecast model with Q3 revenue output used in the board package.

91 relevance

Revenue Build - Regional

Regional source workbook linked into the consolidated forecast.

Capabilities

Everything you would ask your best spreadsheet analyst

Build

Create models, formulas, scenarios, charts, summaries, and analysis outputs from a plain-English request.

Analyze

Ask Derek to explain drivers, variances, sensitivities, and trends using the workbook's real logic.

Fix

Clean workbooks, repair formulas, standardize formats, restructure tabs, and flag suspicious logic.

Explain

Understand any formula, model, output, source range, or linked workbook without manual inspection.

Find

Locate models, assumptions, analyses, and numbers across shared spreadsheets by business meaning.

Compare

See what changed between workbook versions, including assumptions, formulas, sheets, and impact.

Grounded answers

Derek works from cells, formulas, and files, not guesses

Derek understands sheets, tables, formulas, named ranges, comments, validation rules, formatting, charts, and cross-file dependencies.

When Derek gives an answer, the important numbers can be traced back to the source workbook, sheet, cell, range, formula, and version behind them.

See Derek on your finance workflows

Bring a real spreadsheet challenge. Derek can build, fix, explain, or find the answer.

Request a demo