| First Choice Spreadsheet | |
| N/A | |
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FCS file format is used by PFS First Choice office package for spreadsheet documents. First Choice software offered intuitive user interface, limited set of tools and functions, and great stability.
FCS format first appeared in 1987 on DOS systems. First Choice suite had to face competition from Microsoftu and Lotusa only to lose the market after two-year presence during which three update to the software were released. First Choice was distributed on 5¼ and 3½ inch floppy disks.
Windows
| .aws | Ability Spreadsheet Spredsheet Format |
| .dfg | Data Flask Grid Format |
| .dis | Oracle Discoverer Workbook Format |
| .edx | EDraw Max Drawing Format |
| .edxz | Edraw Compressed XML FIle |
| .fcs | First Choice Spreadsheet |
| .fods | OpenDocument Flat XML Spreadsheet Format |
| .gsheet | Link To Google Sheets Web Application Spreadsheet Document |