Попробовал. Открывается, но Total warnings: 6 P-CAD ASCII File Open: logo2.ERR
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Warning (line 301): Invalid (self-intersecting) polygon detected.
Warning (line 378): Invalid (self-intersecting) polygon detected.
Warning (line 442): Invalid (self-intersecting) polygon detected.
Warning (line 502): Absolute grid not defined.
Warning (line 502): Relative grid not defined.
Warning (line 502): Via grid not defined.
Total errors: 0
Total warnings: 6