L Corp. — Project Cost Analysis & Simulation
How L Corp. transformed a 2-3 week Excel-based cost analysis process into a 2-3 day automated workflow
The Challenge: Before EPA
20-sheet Excel files filled sequentially by each department
Entire cost analysis cycle required 2~3 weeks to complete
Repetitive Copy & Paste work and file exchanges
Long working hours spent on manual data transfers between departments
No visibility into data collection status
Unable to monitor consolidated data or track progress across teams
Difficult version control with multiple Excel versions (v1, v2, v3...)
No single source of truth; confusion over which file was the latest
Complex formulas and manual entries
Frequent human errors in cost calculations and data consolidation
Email/file sharing across teams
High risk of data leakage from uncontrolled file distribution
Previous Workflow: Manual File Exchange
File sharing exposes the organization to a 78% data leakage risk
The Solution: After EPA
Systematized existing Excel-based process without changing the Excel structure
Zero learning curve — teams continue working in familiar Excel environment
Real-time data consolidation across departments
All department data automatically merged and updated in a single source
Role-based access control strengthened data security
Each team member only sees and edits their authorized data sections
Automated menu structure + validation rules
Consistent and accurate data entry with built-in error prevention
Real-time monitoring of data entry status
Managers can instantly see which departments have submitted and which are pending
Multiple scenario versions can be created and compared immediately
Run cost simulations with different parameters without duplicating files
End-to-end cost calculation and simulation completed in 2~3 days
Down from 2~3 weeks — an 85% reduction in turnaround time
EPA Workflow: Centralized & Secure
Before vs After Comparison
| Category | Before EPA | After EPA |
|---|---|---|
| Process Duration | 2~3 Weeks | 2~3 Days |
| Data Security | 78% Leakage Risk | Role-based Access |
| Version Control | Manual (v1, v2, v3...) | Automatic |
| Error Rate | High (Manual Entry) | Near Zero (Validation) |
| Status Visibility | None | Real-time Dashboard |
| Scenario Simulation | Not Possible | Instant Comparison |
Ready to Transform Your Cost Analysis Process?
See how EPA can automate your Excel workflows while keeping your existing spreadsheet structure intact.