Language | Default File Extension |
| CSPro Logic | .apc |
| CSPro Text Template (HTML) | — |
| CSPro Text Template (Markdown) | — |
| CSPro Text Template | — |
| CSPro Messages | .mgf |
| CSPro Action Invoker | — |
| CSPro HTML Dialog | .html (in CSPro's html/dialogs folder) |
| CSPro Document | .csdoc |
| CSPro Specification File (JSON) | .ent, .bch, .xtb,.csprops, .dcf, .cmp, .csds, .cspack, .exf, .fqf, .ssf, .xl2cs |
| CSPro Specification File (INI) | .ent, .bch, .xtb,.csprops, .dcf, .cmp, .exf, .fqf, .ssf, .xl2cs (pre-8.0 files) |
| HTML | .html, .htm, .cshtml |
| JavaScript | .js, .mjs |
| JSON | .json, .geojson |
| Markdown | .md |
| SQL | .sql |
| YAML | .qsf |
| None (Text) | (any other extension) |