| File Extension: | LAC |
| File Type Description: | Cognos Local Authentication Cache |
| File Type Developer: | IBM |
| Primary Associated Software: | Cognos software |
| Primary Software Developer: | IBM |
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Cognos Local Authentication Cache files are the most popular type of files to carry the LAC file extension, originally developed by IBM for Cognos software. According to our internal data, Cognos Local Authentication Cache files are most popular with users in United States, with a majority of them running Windows 10. Frequently these users are visiting our web site using Google Chrome.
 | Cognos software by IBM |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .IL | Microsoft Corporation | Uncommon Files | MSIL Assembler Input File |
| .4GE | IBM | Developer Files | IBM Informix 4GL Compiled Source Code |
| .NIX | IBM | Data Files | Rational XDE Data |
| .NS4 | IBM | Database Files | Lotus Notes 4 Database |
| .EID | IBM | Data Files | IBM Voice Type Languages Newuser File |
| .BDK | IBM | Disk Image Files | OS/2 Floppy Disk Image |
| .CLX | IBM | Data Files | Rational XDE |
| .POS | Trimble Inc. | Data Files | Trimble Position File |
| .WK4 | IBM | Data Files | Lotus Lotus 1-2-3 V4 Worksheet |
| .COL | Open Source | Data Files | Bibexcel File |
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