What you’ll receive
Input One CAT FLS, FL2 or FLS2 file File limit 64 MiB per file Your original stays separate from the result.
Output limits
Use files that match your ECU and software version. A converted container is not a tuned calibration.
How to convert your file
Choose the original factory container shown above. The filename extension must match the supported input. After processing, review the conversion report and warnings. Open My uploads to download the original, converted files and report again. Supported Caterpillar layouts
Upload one FLS, FL2 or FLS2 container. FLS2 filenames are accepted for supported FL2 packages. Plain sequential and banked records are extracted; encrypted variants and unknown encodings return an explanation instead of a usable binary.
The report preserves each declared address, or bank identifier and offset. Separate banks remain separate. Missing address ranges are not filled, so an extracted block must not be mistaken for a complete ECU image.
Working with addresses
For example, a block declared at address 0x800000 does not imply that the BIN contains eight megabytes of preceding data. Use the address recorded in the report when mapping the block into your editor.
After extraction, you can check a supported ECU checksum or extract map definitions for WinOLS using compatible files.
