A spreadsheet in. A useful App out.

Describe the workflow behind the spreadsheet

Explain who uses the data and what they need to do. A project tracker might need an owner filter and overdue list; a supplier comparison might need side-by-side criteria. Start with one workflow and a small sample rather than importing every spreadsheet you have.

Use fictional or sanitized data for the first build. State what each field means, which values are allowed, and whether a blank cell is unknown, not applicable, or zero.

Test behavior as well as appearance

Open the preview and try the main actions on a large and a small screen. Check counts against the source, clear and reapply filters, and try empty or incomplete records. A convincing screenshot alone does not establish that the App works.

Review requirement checks and ask for precise fixes: a missing filter, a confusing label, or an incorrect calculation. Check the updated preview and saved build history before choosing the version to use.

Choose how the result is accessed

Creating or previewing an App does not publish it. Private sharing requires recipients to sign in; publication creates a public link. Review the data and access behavior before choosing either path.

This is a starting workflow for a focused work tool. Do not assume that an initial preview includes a production database, live spreadsheet synchronization, or every feature needed for a larger application. Make those requirements explicit and verify the result.

Try it with a small example.