As an example of the JELIB format, let us assume a design with two levels of hierarchy. The bottom level of hierarchy (cell "low") has 3 nodes, two arcs, and an export:

The top level of hierarchy (cell "high") has two instances of the cell (the right instance is rotated 90 degrees) and an arc connecting them:

Here is the JELIB file for the above layout.

`# header information:
HExample|8.07
# Views:
Vlayout|lay
# Technologies:
Tmocmos|mocmosSecondPolysilicon()BF
# Cell high;1{lay}
Chigh;1{lay}||mocmos|1093555876000|1094258888640|
Ngeneric:Facet-Center|art@0||0|0||||AV
Ilow;1{lay}|low@0||-14|12|||D5G4;
Ilow;1{lay}|low@1||15|12|R||D5G4;
AMetal-1|net@0|||S0|low@1|a|5|22|low@0|a|-4|22
X
# Cell low;1{lay}
Clow;1{lay}||mocmos|1093555232000|1094258870406|
Ngeneric:Facet-Center|art@0||0|0||||AV
NMetal-1-Metal-2-Con|contact@0||-10|10||||
NMetal-1-Pin|pin@0||10|10||||
NMetal-2-Pin|pin@1||-10|-10||||
AMetal-1|net@0|||S1800|contact@0||-10|10|pin@0||10|10
AMetal-2|net@1|||S900|contact@0||-10|10|pin@1||-10|-10
Ea||D5G2;|pin@0||U
X
`