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Esto es lo que hay:
What do all the file extensions mean for a Paradox table (.DB, .MB, VAL, .XG0, etc.)?
A Paradox table may have several physical files associated with it. The extensions for a single Paradox table are
as follows (although not all of these may exist depending on the structure of the table and features included):
.DB
Stores the static field data associated with each record.
.MB
Stores the memo field data associated with each record.
.PX
Stores the primary index data.
.Xnn
Stores one secondary single-field index data (nn = sequentially numbered).
.Ynn
Stores one secondary single-field index data (nn = sequentially numbered).
.XGn
Stores one secondary multi-field index data (n = sequentially numbered).
.YGn
Stores one secondary multi-field index data (n = sequentially numbered).
.VAL
Stores validity checks and referential integrity properties.
Best regards
Marcos.
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