File Expander Engine Descriptions Database
4.0 | 7 Votes
What is a FID file?
Database referenced by File Expander, a file and data objects analysis program; contains descriptions of file formats supported by File Expander; named "FIEngine.fid" by default; also used by the File Investigator SDK.
Programs that open or reference FID files
Microsoft Catalog Indexing Service File
2.3 | 3 Votes
System file created by Indexing Service, a Microsoft Windows operating system component that creates a searchable index of file system information; contains data that helps the operating system perform searches more quickly.
FID files are commonly located in the C:\System Volume Information\catalog.wci\ directory.