Get a fully automated, professionally built spreadsheet solution — with API integrations, VBA macros, Google Apps Script, and database connectivity — saving your team hours of manual work every week.
I Will Build Custom Google Sheets or Excel Automation & API Integrations
Targeted fix or small automation for an existing sheet, formula, macro, or API connection.
- Up to 2 custom formulas or formula fixes
- 1 VBA macro or Google Apps Script function
- 1 button or interactive form element
- 1 data source connection (API, database, or file import)
- Compatible with Excel (Mac & Windows) or Google Sheets
- 30 days of free post-delivery bug-fix support
Full automation build with multiple macros, API integrations, and automated reporting outputs.
- Up to 6 custom formulas and advanced UDFs
- Up to 3 VBA macros or Apps Script automations
- Multiple buttons, forms, and interactive controls
- REST or GraphQL API integration with OAuth, JWT, or Basic Auth
- Automated report export to PDF or Word template
- 30 days of free post-delivery bug-fix support
End-to-end automation system with database connectivity, multi-API integration, and full source code delivered.
- Unlimited formulas, UDFs, macros, and script automations
- Multi-API integration (e.g. Shopify, Amazon, crypto, stock market, or custom)
- MySQL or MS SQL database connectivity within Excel or Google Sheets
- Automated emails, PDF/Word reports, CSV uploads to database
- Full source code delivered with inline documentation
- 30 days of free post-delivery bug-fix support
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Key details about this service to help you decide. Generated by Zinn Hub, not the seller.
Value Position
Platforms Supported
API Compatibility
Automation Depth
Post-Delivery Support
What You'll Receive
Full Description
If your team is still copying and pasting data, running reports by hand, or struggling to connect your tools to a spreadsheet, this service is built for you. We design and deliver custom automation solutions in Microsoft Excel and Google Sheets that work reliably, scale with your business, and are fully handed over with 30 days of support included.
Based in London, the Zinn Digital team specialises in spreadsheet programming, API integration, and workflow automation for businesses and individuals across every sector. Whether you have a rough sketch on paper or a detailed technical brief, we translate your requirements into clean, professional, working solutions.
**What we build:**
We handle the full spectrum of spreadsheet development — from a single smart formula or a one-click macro button, right through to complete automated reporting systems. Our capabilities include REST and GraphQL API integration (including OAuth, JWT, and Basic Authentication), VBA automation for both Mac and Windows, Google Apps Script programming, advanced user-defined functions (UDFs), financial calculators, and database connectivity to MySQL and MS SQL directly within your sheet.
We also build automated workflows that trigger emails, generate PDF and Word reports from your data, upload CSV files to MySQL, and convert JSON, XML, and CSV data into clean spreadsheet formats. If your business uses Shopify, Amazon, cryptocurrency feeds, stock market data APIs, or any other REST-based service, we can connect it directly into your workbook.
**How it works:**
Simply place your order and share your project details — sketches, existing files, requirements documents, or a plain description of what you need. We review everything and get to work. If we have questions, we will reach out via the order chat. You will receive a fully functional, tested solution delivered directly to you, along with 30 days of free post-delivery support to cover any bugs or errors.
**Who this is for:**
This service suits small business owners automating admin tasks, analysts building reporting dashboards, finance teams needing live data feeds, e-commerce operators connecting marketplaces to their sheets, and developers who need a reliable spreadsheet layer added to a larger system.
**Why Zinn Digital:**
We are a dedicated team of spreadsheet and API specialists, not generalists. Every solution is built with proper programming structure — readable, maintainable, and documented. Thirty days of free support after delivery is included as standard, so you are never left on your own after handover.
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Compare Packages
| Feature | Starter | Professional | Enterprise |
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 10 days |
| Revisions | 2 | 3 | unlimited |
| Up to 2 custom formulas or formula fixes | ✓ | ✕ | ✕ |
| 1 VBA macro or Google Apps Script function | ✓ | ✕ | ✕ |
| 1 button or interactive form element | ✓ | ✕ | ✕ |
| 1 data source connection (API, database, or file import) | ✓ | ✕ | ✕ |
| Compatible with Excel (Mac & Windows) or Google Sheets | ✓ | ✕ | ✕ |
| 30 days of free post-delivery bug-fix support | ✓ | ✓ | ✓ |
| Up to 6 custom formulas and advanced UDFs | ✕ | ✓ | ✕ |
| Up to 3 VBA macros or Apps Script automations | ✕ | ✓ | ✕ |
| Multiple buttons, forms, and interactive controls | ✕ | ✓ | ✕ |
| REST or GraphQL API integration with OAuth, JWT, or Basic Auth | ✕ | ✓ | ✕ |
| Automated report export to PDF or Word template | ✕ | ✓ | ✕ |
| Unlimited formulas, UDFs, macros, and script automations | ✕ | ✕ | ✓ |
| Multi-API integration (e.g. Shopify, Amazon, crypto, stock market, or custom) | ✕ | ✕ | ✓ |
| MySQL or MS SQL database connectivity within Excel or Google Sheets | ✕ | ✕ | ✓ |
| Automated emails, PDF/Word reports, CSV uploads to database | ✕ | ✕ | ✓ |
| Full source code delivered with inline documentation | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build Custom Google Sheets or Excel Automation & API Integrations
Build Custom Google Sheets or Excel Automation & API Integrations
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Frequently Asked Questions
The more detail you can share, the better — but there is no strict format required. A written description of what you need, your existing file or sheet, a sketch, a sample data set, or a list of requirements all work perfectly. If anything is unclear, we will follow up via the order chat before starting work.
We support both Microsoft Excel (on Mac and Windows) and Google Sheets. Please let us know which platform you are using when you place your order so we can tailor the solution accordingly.
Yes. If your API uses REST, GraphQL, or standard authentication methods such as OAuth, JWT, or Basic Auth, we can integrate it. Simply share the API documentation or endpoint details and we will confirm feasibility before starting.
After delivery, if the solution produces an error or does not behave as specified, we will fix it at no extra charge within 30 days. This covers bugs and breakages — it does not cover new feature requests, which would be scoped as a separate order.
Each package includes a defined number of revisions (Starter: 2, Professional: 3, Enterprise: unlimited). A revision is a change or correction based on the original brief. Significant scope additions beyond the original requirements may require a separate order or package upgrade.
Absolutely. We can modify, extend, or rebuild on top of your existing files. Please share the file when you submit your requirements so we can assess it and incorporate it into the solution.
No. We design solutions to be straightforward to use for non-technical team members. If requested, we can include simple usage notes or an instruction tab within the spreadsheet to help your team get up and running immediately.
Customer Reviews
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Very Good Job
Outstanding support and effort. Excellent to work with and very responsive. I look forward to working with you again on future projects. Thank you.
Always has been and still is the best we have worked with. Thank you!
Amazing work
Quickly understood my needs and asked great questions to get to a solution!
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