C:\Tcl\lib>objdump -p "C:\Tcl\lib\tcl86.lib" |head
In archive C:\Tcl\lib\tcl86.lib:

tcl86.dll:     file format pe-x86-64

Characteristics 0x0

Time/Date               Sat Jun 06 05:37:55 2015
Magic                   0000
MajorLinkerVersion      0
MinorLinkerVersion      0