It appears that both .vcf and .vci files are from VPHybridCAD software and both formats are used for technical drawings. If any kind of vcf to vci conversion is doable, it would be a matter of resaving between these two technical drawing formats. Alas, we have not found any relevant information about this, so if you have particular problem with the export of these file types, it would be wise to contact VPHybridCAD support or reach to the online community.
Updated: July 21, 2023