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SAP2000 model files of binary format may become corrupted due to:

  • Network congestion or connectivity issues when saving to a network location.
  • Interference from file indexing or anti-virus software.

Files may be recovered through one of the following methods:

  • In binary format, open the model backup file, which is the SBK extension automatically created.
  • In text format, import the model backup file, which is the $2K extension automatically created.

Each of these backup files should be located with the SDB file, and should reflect the most recently saved model.

See Also