What are some alternatives?
WebMerge - WebMerge is an online platform that allows you to easily collect data, populate a document and send it to any contact automatically.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
DocRaptor - Forget tedious coding or server management: Our simple API that makes it easy to convert HTML to PDF, XLS and Excel files.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
1099 Tax Forms by Payable - Automatically generate tax forms for contractors
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.