Notes about the BTM file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The BTM file type is primarily associated with '4DOS'. Note: Norton Utilities also uses 4DOS. Note: This file type can become infected and should be carefully scanned if someone sends you a file with this extension.