import from Dia software to Lucidchart

Hi Tomek! Lucidchart allows you to import diagrams from MS Visio (.vdx .vsdx and .vsd) Gliffy (.gxml .gliffy) Draw.io (.xml) and Omnigraffle (.graffle .graffle.zip). If you're able to export your Signavio docs into one of these formats you should be able to then import them into Lucidchart. Check out our Help Center article for some more information on this. If you're trying to import images our Import and Manage Images article outlines how to do this.

Please let me know if you have any questions about this!