Do I need Microsoft Excel installed?

No. The tools read and write .xlsx files directly in your browser, so Excel is not required.

Are my spreadsheets uploaded to a server?

No. Files are processed locally in your browser and never leave your device.

Are these Excel tools free?

Yes, all Excel tools are free with no signup required.

Excel tools

Convert Excel workbooks to CSV or XML and build .xlsx files from CSV or XML data — without Excel installed and without uploading anything. Every conversion runs client-side, so your spreadsheet data stays on your device.

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Frequently asked questions

Do I need Microsoft Excel installed?: No. The tools read and write .xlsx files directly in your browser, so Excel is not required.
Are my spreadsheets uploaded to a server?: No. Files are processed locally in your browser and never leave your device.
Are these Excel tools free?: Yes, all Excel tools are free with no signup required.

Operated by

Tools by Timothe AI is a suite of free tools built and operated by unbounded pioneering inc, the company behind Timothe AI.

Ryosuke SuzukiFounder & CEO

Founder & CEO of Unbounded Pioneering Inc., the company behind Timothe AI, and an expert in machine learning and AI product development. He began his career in machine learning research at a university laboratory, then designed and built large-scale products as a software engineer at PLAID, Rakuten, and Recruit, while also driving new business development. Now specializing in generative AI and AI products, he works across both engineering and business development, and is a named inventor on multiple granted patents in web technology.

Named inventor on granted patents JP6887648 & JP7480958 · Patent pending on Timothe AI technology

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What we can help with

Adopting and getting the most out of Timothe AI
A demo or trial of Timothe AI
AI adoption in general (beyond our own product, too)
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