Expensify - Import expenses directly from a credit card to create free expense reports quickly. Approve reports online and reimburse directly to a checking account with one click.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Spendesk - Smart spending solution for agile teams
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Abacus - Expenses without the 'expense report'
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.