mappingfile
nounUK /ˈmæpɪŋ faɪl/
US /ˈmæpɪŋ faɪl/
A mapping file is a computer file that shows how one set of names or numbers matches another set.
The program reads the mapping file to know which old names become which new names.
RELATED WORDS
OTHER MEANINGS
2. A file that records where pieces of data are stored in another file or system.
The backup tool uses a mapping file to find each saved chunk.
3. A file used in genetics that lists positions on a chromosome.
Scientists opened the mapping file to see where each gene sits.
4. A file that connects two systems, such as linking old account numbers to new ones.
During the upgrade, the mapping file matched every customer to a new ID.