Is this a clone of classic xBase?
No. x64base is a lineage evolution: it keeps the practical clarity of xBase tables while modernizing to 64-bit formats, explicit specs, and a teachable tooling ecosystem.
What file formats are used?
- DBF_64 for table records
- FPT64 for memo data
See: DBF_64 Specification, FPT64 Memo Format
Why so much emphasis on education?
Because file formats and relational thinking are best learned by inspection and repetition.