One of my precious work in progress can't be opened anymore with Inskscape. Probably due to a too full-hard drive or maybe a sudden computer stop, the file looks like damaged.
First, it was a "preferences.xml" error. I deleted the .xml files, as recommanded, and the error message turned to "Failed to load the requested file".
I tried again after downloading the latest Inkscape version (0.92 for x64) but it only opened a blank file.
Opening it with Wordpad I get a huge block of code that I cannot understand. Opening it with LibreOffice Draw I get "General Error. General Entrance/Exit Error". Opening it with Microsoft Word I get "Incorrect character found. Location: Line: 87 Column: 943478."
I don't get how the Line/Column system works, is it possible to fix the .svg file only by removing some altered parts ? Or is the file too damaged to be recovered :'( ?
Thanks a lot if you some motivation to help me

The .svg file is too large for attachment, but I'll update it if needed.