Spreadsheet Services

Calc LLC

Calc LLC is a data science company located in Wilton CT, close to Yale University. Calc LLC was founded by Yisong Geng, PhD. Dr. Geng is a top Excel expert. When people have hard Excel problems, they come to Calc. We even develop Excel applications for Microsoft Corporation!

Training

We provide corporate training at your site or online training through video meeting.
Subjects include Excel, Google Sheets, Power BI, Microsoft Access, AppSheet and more.
Learn spreadsheet for free using our step-by-step tutorials

Consulting & Development

Development of Power BI, Power Automate, and other Microsoft "Power" products
Excel development: VBA, macro, and Office Scripts programming, design, automation, formula, pivot table, dashboard, fix corrupted files, reduce file size, migration
Web version Excel development: develop data-intensive interactive web applications based on web version of Excel (Excel Online)
Google Sheets development: programming with Apps Script, design, automation, formulas, pivot table, dashboard
Microsoft Office development: Automation of tasks in Access, Word, Powerpoint, and Outlook
Google Workspace development: Automation of tasks in Google Docs, Slides, and Forms
Google AppSheet Development: Web-based data application with no or low code

200+

We have completed 200+ spreadsheet projects.

Our clients include Microsoft, Disney, Duke University etc. We have also helped factories, farms, retailers, tool rentals, real estates, consulting firms, and individual business professionals.

Price

Our price is very reasonable.

Returning clients enjoy 5% loyalty discount.

Contact

Our expert services improve your productivity and work quality. It saves you time & money. If you have any questions, just contact us. The initial consulting is free.

Contact Yisong Geng PhD at Calc LLC »