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I will build a private offline sales analytics dashboard for your business
Xavier L.
About this gig
Make faster decisions without uploading business data to the cloud.
My name is Xavier Loeb, founder of XL Data Express. I will configure XL SALES, a private offline analytics platform for growing businesses that need clear sales, customer, product, regional and inventory insights without rebuilding spreadsheets for every report.
Load Excel, CSV or Parquet files locally. XL SALES reduces repetitive merging, column cleanup, format corrections and formula maintenance. Explore KPIs, filters, period comparisons, customer and product performance, inventory views, SQL-style queries and visual reports from one interface.
Included:
- Local offline operation
- Excel, CSV and Parquet
- Sales, customer, product and regional analysis
- Interactive KPIs, filters and charts
- SQL-style queries without coding
- Brand, currency and data mapping by package
- Setup guidance and support
Before ordering, send an anonymized sample or column list so I can confirm compatibility. A business-use license is included. Source code and resale rights are not included unless quoted separately.
Message me for a 15-minute sample-data review.
Get to know Xavier L.
Xavier L.
Data Analyst Excel Power BI and Offline Dashboards
- FromMexico
- Member sinceAug 2026
- Avg. response time1 hour
Languages
Spanish, English
I am an 11th-term Economics student at UAM Azcapotzalco and a data analyst experienced in pharmaceutical-market and financial analysis. Since 2025, I have built dashboards, cleaned databases and automated reports using Power BI, Excel, Power Query, Python and SQL.
Through XL Data Express, I create offline BI tools that turn Excel and CSV files into clear KPIs, filters and visualizations. I also repair AI-generated spreadsheets and validate formulas.
I communicate in Spanish and English and define project scope clearly. Please contact me before sharing confidential information.
FAQ
Does the dashboard work without internet?
Yes. After setup, the dashboard is designed to run locally on the licensed business computer without a public cloud dashboard subscription.
Are my business files uploaded to the cloud?
No. The production workflow is local. Before ordering, share only an anonymized sample or a list of column names so I can verify compatibility.
Which formats are supported?
Excel, CSV and Parquet. Parquet is especially useful for larger tabular datasets, although performance depends on the computer, file structure and number of records.
What can I analyze?
Sales, customers, products, periods, regions and inventory views when the corresponding fields are present in your data.
Can you customize the branding?
Yes. Logo, colors, currency, language and column mapping are included according to the selected package.
Do I need to know SQL?
No. XL SALES includes an interface for SQL-style queries without requiring the client to write code.
Is the source code included?
No. The packages include implementation and a business-use license. Source code, redistribution and resale rights require a separate written quote.
Can it process files larger than a normal spreadsheet?
Parquet can make large tabular datasets more efficient. I confirm the practical scope after reviewing the row count, columns and target computer.
