Lumetric
Backed byY Combinator

The AI Analyst
to Review Your Spreadsheets

Catch formula errors, broken assumptions, and cross-model inconsistencies before your stakeholders do.

Get Early Access
Series_B_Model_v3_FINAL.xlsx
A
B
C
D
E
12
Metric
Q1
Q2
Q3
Q4
13
ARR
$2.4M
$2.9M
$3.6M
$4.2M
14
QoQ Growth
-
21%
24%
17%
15
CAC
$1,200
$1,150
$1,180
$1,210
16
LTV:CAC
3.2x
3.4x
8.1x
3.1x
17
Net Rev Ret
112%
115%
118%
114%
18
Gross Margin
71%
72%
73%
74%
Review Finding
Inconsistent calculation in D16

LTV:CAC jumps from 3.4x to 8.1x. D16 references annual ARR but quarterly CAC.

High PriorityFormula Error

How it works

1. Send your files

Upload one or multiple linked spreadsheets. Works with Excel, Google Sheets, and CSV.

$2.4M
$2.9M
8.1x
3.1x

2. We analyze everything

Every formula, cell reference, and assumption gets checked for errors and inconsistencies.

Issue in F8

SUM formula excludes row 7. Total revenue is understated by $340K.

F8=SUM(F3:F6) missing F7

3. Get your report

Detailed findings with specific cell references, explanations, and priority levels.

Frequently asked questions

What file formats do you support?

Excel (.xlsx, .xls), Google Sheets, and CSV files. We can also work with linked workbooks and multi-sheet models.

How long does the review take?

Most spreadsheets are analyzed within minutes. Complex models with multiple linked files may take slightly longer.

Is my data secure?

Yes. Files are encrypted in transit and at rest. Analysis runs in isolated sandboxes with tightly controlled network access (ingress and egress) and no persistent storage. We never store your data after analysis and never train on your files.

What kinds of errors do you catch?

Formula errors, broken references, inconsistent assumptions across sheets, hardcoded values that should be formulas, circular references, and logical inconsistencies in your model.

Can you review multiple related files together?

Yes. Upload all related files and we'll validate consistency across them—catching mismatched assumptions, broken links, and conflicting data.