Plumsail Documents - Document automation software that integrates with your favorite apps to generate documents seamlessly.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
docassemble - docassemble is a free, open-source expert system for guided interviews and document assembly.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
DocSpring - DocSpring provides a PDF filling API that makes it easy for programmers to fill out and generate PDF documents.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.