Excel Export Features

Overview

MixModeler's Excel export functionality creates comprehensive, professionally formatted Excel files containing all aspects of your marketing mix model. These exports are designed for sharing with stakeholders, archival purposes, and model reimport for future analysis.

Exporting a Model

How to Export

  1. Navigate to Model Library

  2. Locate your model in the list

  3. Click the Export button (download icon)

  4. Excel file downloads automatically to your browser's download folder

File Naming: ModelName_Export_YYYYMMDD_HHMMSS.xlsx

Example: TV_Digital_Model_Export_20250104_143022.xlsx

Export Time

  • Small models (<30 variables): Instant (<1 second)

  • Medium models (30-100 variables): 1-3 seconds

  • Large models (100+ variables): 3-8 seconds

  • Includes decomposition: Add 2-5 seconds

Excel File Structure

Each exported Excel file contains multiple sheets organized by content type:

Core Sheets (Always Included)

Model Info: Model metadata and settings Data: Full dataset used in the model Coefficients: Complete coefficient information with statistics Model Statistics: Overall model fit metrics Residuals: Actual vs predicted values with residuals Variable Transformations: All variable engineering details

Model-Type Specific Sheets

For OLS Models:

  • OLS Statistics

  • OLS Diagnostics

  • OLS Full Summary

For Bayesian Models:

  • Bayesian Statistics (with prior and posterior information)

  • Bayesian Diagnostics (MCMC convergence metrics)

  • Bayesian Model Metrics (WAIC, LOO, etc.)

Optional Sheets

Decomposition (if requested):

  • Group Decomposition

  • Variable Decomposition

Weighted Variables (if present in model):

  • Weighted Variables detail sheet

Sheet Details

Model Info Sheet

Contains model configuration and metadata:

Field
Description
Example

Model Name

Unique model identifier

TV_Digital_Model

KPI

Dependent variable

Revenue

Model Type

OLS or Bayesian

OLS

Date Range

Time period analyzed

2023-01-01 to 2024-12-31

Observations

Number of data points used

104

Features

Number of independent variables

25

R-squared

Model fit statistic

0.8543

Adjusted R-squared

Adjusted model fit

0.8421

Created Date

When model was built

2025-01-04 14:30:22

Data Sheet

Complete dataset with all variables:

  • Date column: Time periods

  • KPI column: Dependent variable values

  • Feature columns: All independent variables

  • All observations: Including those filtered by date range

Use Case: Verify data quality, check for anomalies, reimport model

Coefficients Sheet

For OLS Models

Variable
Coefficient
Std Error
T-statistic
P-value
CI Lower
CI Upper

const

125.45

22.31

5.62

0.0001

81.52

169.38

TV_Spend

3.25

0.42

7.74

0.0000

2.43

4.07

Digital_Spend

2.18

0.31

7.03

0.0000

1.57

2.79

Interpretation:

  • Coefficient: Effect size - a 1-unit increase in the variable leads to this change in KPI

  • Std Error: Uncertainty in coefficient estimate

  • T-statistic: Coefficient divided by standard error

  • P-value: Statistical significance (<0.05 typically significant)

  • CI Lower/Upper: 95% confidence interval bounds

For Bayesian Models

Variable
Prior Dist
Prior Mean
Prior Std
Posterior Mean
Posterior Std
HDI 95% Lower
HDI 95% Upper
R-hat
ESS Bulk

const

Normal

0

100

128.32

21.45

86.84

170.15

1.00

1245

TV_Spend

Normal

0

10

3.18

0.38

2.45

3.91

1.00

1382

Additional Bayesian Fields:

  • Prior Distribution: Type of prior used (Normal, Student-t, etc.)

  • Prior Mean/Std: Prior beliefs before seeing data

  • Posterior Mean/Std: Updated beliefs after seeing data

  • HDI (Highest Density Interval): 95% credible interval

  • R-hat: Convergence diagnostic (should be <1.01)

  • ESS: Effective sample size

Model Statistics Sheet

OLS Models

Statistic
Value

R-squared

0.8543

Adjusted R-squared

0.8421

F-statistic

45.32

F-statistic p-value

<0.0001

AIC

1245.67

BIC

1289.45

Log-Likelihood

-615.83

Observations

104

Degrees of Freedom (Model)

25

Degrees of Freedom (Residuals)

78

Bayesian Models

Includes MCMC settings and model comparison metrics:

Statistic
Value

Chains

4

Draws

2,000

Tune

1,000

Target Accept

0.95

Max R-hat

1.002

Min ESS Bulk

1,245

Divergences

0

WAIC

1238.45

LOO

1240.12

Residuals Sheet

Detailed prediction analysis:

Date
Actual
Predicted
Residual
Abs Error
Pct Error

2023-01-08

1250.0

1225.5

24.5

24.5

1.96%

2023-01-15

1340.0

1365.2

-25.2

25.2

-1.88%

Uses:

  • Identify periods with large prediction errors

  • Check for systematic patterns in residuals

  • Validate model accuracy

  • Find outliers or anomalies

Variable Transformations Sheet

Documents all variable engineering:

Variable Name
Type
Original Variable
Parameters
Identifier

TV_Adstock_50

adstock

TV_Spend

rate=0.50

AD_50

Digital_Log

log

Digital_Spend

base=e

LOG

TV_x_Season

multiply

TV_Spend × Seasonality

-

MULT

Campaign_Q1

split_by_date

Campaign_Total

start=2024-01-01, end=2024-03-31

SPL_Q1

Benefits:

  • Complete audit trail of transformations

  • Reproducibility documentation

  • Easy reference for similar models

  • Stakeholder transparency

Working with Exported Files

Opening and Reviewing

Recommended Software:

  • Microsoft Excel 2016 or later (best compatibility)

  • Google Sheets (limited formatting)

  • LibreOffice Calc (good compatibility)

Tips:

  • Files use standard .xlsx format

  • All formulas are values only (no Excel formulas)

  • Safe to share - no macros or executable content

  • Can be opened on any platform

Editing Exported Files

Safe to Edit:

  • Add notes or comments

  • Highlight important values

  • Create additional sheets for analysis

  • Add charts or visualizations

Do Not Edit (if planning to reimport):

  • Sheet names

  • Column headers

  • Data structure

  • Variable names in transformation sheet

Sharing with Stakeholders

Include These Sheets:

  • Model Info (overview)

  • Coefficients (key results)

  • Model Statistics (validation)

  • Decomposition sheets (insights)

Optional to Include:

  • Residuals (technical validation)

  • Full Data (may contain sensitive information)

  • Variable Transformations (technical details)

Presentation Tips:

  • Add an Executive Summary sheet at the beginning

  • Use conditional formatting to highlight key coefficients

  • Include interpretation notes for non-technical audiences

  • Consider creating charts from coefficient data

Export Options

Standard Export

Default export includes all core sheets plus model-type specific sheets.

Command: Click "Export" button in Model Library

Contents: Model Info, Data, Coefficients, Statistics, Residuals, Transformations, Type-specific sheets

Export with Decomposition

Includes additional decomposition analysis sheets.

Command: Check "Include Decomposition" before exporting

Additional Sheets:

  • Group Decomposition (channel category contributions)

  • Variable Decomposition (individual variable contributions)

Use When: Sharing attribution insights with marketing teams

Selective Sheet Export

Some users may want only specific sheets for different audiences.

Workaround: Export full file, then delete unnecessary sheets before sharing

Common Configurations:

  • Executive Summary: Model Info + Coefficients + Decomposition

  • Technical Review: All sheets

  • Marketing Team: Model Info + Coefficients + Decomposition + Residuals

  • Finance Team: Model Info + Decomposition (for budget allocation)

File Size and Limits

Typical File Sizes

  • Small model (20 variables, 52 observations): 150-300 KB

  • Medium model (50 variables, 104 observations): 400-800 KB

  • Large model (200 variables, 260 observations): 1.5-3 MB

  • Very large model (500 variables, 500 observations): 5-10 MB

Browser Download Limits

No practical limits - MixModeler exports work within standard browser download capabilities.

Maximum Tested: 500 variables × 500 observations successfully exported (10 MB file)

Common Use Cases

Archive and Documentation: Export models for record-keeping and compliance

Stakeholder Reporting: Share results with marketing, finance, or executive teams

Model Comparison: Export multiple models to compare side-by-side in Excel

Further Analysis: Use exported data for custom analysis in Excel or other tools

Reproducibility: Document exact model specifications for future reference or audits

Reimport: Save models to reload later (see Model Reimport documentation)


Next Steps: Learn about Model Export Structure to understand file organization, or explore Model Reimport to reload exported models.

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