A company can hold dozens of spreadsheets and need one internal app. Moving from a spreadsheet to an internal app is a choice of process, not a file hunt. The sheet that deserves release one is edited by more than one person, and a wrong copy comes back as a price, a shipment or a promise.
Four questions in the brief
Do several people change the same file. Is the file the system of record, or an export. Does a wrong version cost money or a customer commitment. Does the work repeat every week in the same steps. Four yes answers put that file first.
The other files stay
A personal calculator, a list with one editor and an archive opened once a month stay where they are. Moving them inflates the release and leaves Monday unchanged. HED Creative sorts the inventory into stay, later and now. Discovery runs from Berlin or Ankara.
Now contains one process: quotes, field jobs, dealer orders or approvals. Two processes in one launch produce two half records. The brief names the second and leaves it in line.
Columns that move
The app is not a reskin of the workbook. Columns people fill by hand this week move. A hidden calculation nobody can explain does not. If you cannot open the logic, the screen cannot either.
Name the owner
The person who saves the file today becomes a role on the record. A shared folder is not ownership. After launch, the repository, who may add a user and how a column change is queued at month six are written down. The app does not live as another copy on a laptop.
Write the choice on web app development. The quote file, when it is first in line, is described in one quote record. The team that keeps the record after launch is a software partner.