We Replaced 47 Excel Files With One Power BI Model. Here’s What Actually Happened.
Last Updated on February 12, 2026 by Editorial Team
Author(s): Gulab Chand Tejwani
Originally published on Towards AI.
15 hours every Monday copying data. Daily errors. Zero trust in the numbers. Here’s what actually happened when we migrated from Excel chaos to Power BI.
Monday, 6:23 AM. My phone buzzed.
The article narrates the journey of migrating from a chaotic system reliant on 47 Excel files to a streamlined Power BI model, highlighting the struggles encountered along the way, such as resistance from team members, data accuracy issues that emerged during board meetings, and the challenges of training users on the new system. Ultimately, it emphasizes the substantial time saved in report preparation, the drastic reduction in errors, and how this transformation led to increased trust in data and more effective decision-making across the organization.
Read the full blog for free on Medium.
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