Microsoft Excel, Microsoft 365 (Office), Apache OpenOffice, ONLYOFFICE, WPS Office, Office Online, SoftMaker FreeOffice, Microsoft Works, Trio Office, NeoOffice, Joeffice, SSuite Office, IBM Docs, Oracle Open Office, Corel WordPerfect, CryptPad, Arcane Office, Polaris Office, AppleWorks, Ashampoo Office, EuroOffice, Collabora Office, OfficeWork Office Online, Live Documents, Truly Office, Yozo Office, iPushPull, Ability Office, Siag Office, Oxygen Office, Novus Office, Conholdate.Total for Java, Go-oo, Zoho Workplace, Office Reader, Rizonesoft Office are some alternatives to Calligra Suite.