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Why is the file size of the generated file so large?

When converting a binary format (such as GDSII) to a text based format (such as RS-274X, DXF, GDS-TXT, CIF) you may notice that the size of the exported file may be several times larger than the one of the imported file. The reason for this is that binary file formats are much efficient in storing data.

The same can also be observed if the imported file format contains arrays of cells (blocks, structures), and the selected export file format does not support arrays. In that case, LinkCAD's needs to "explode" the array. A single 100x100 cell array then translates into 10,000 cell references.

Strategies to reduce the file size:

- If exporting to DXF, in the "DXF Export Options" dialog, select the highest possible DXF version supported by the software that will be reading the DXF file. Higher DXF versions tend to be more compact.

- If exporting to DXF, in the "DXF Export Options" dialog, check "Binary DXF" if the software that will be reading the DXF file supports binary DXF.

- Only export the layers you need

- Use "Tools > Merge Overlapping Areas..." to simplify the data

- Use "Tools > Convert Quasi-Circles to Circles..." to convert polygonal circles into true circles

- Set the "Arc Precision" to suit your requirements, but not preciser as necessary. That is, if using "segments/360", use as little segments as possible; if using a units-based arc precision, set it as high a possible.

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