Could not open file! Lost 2 weeks of working progress. Help me please

[xxxxx55JQ9K2]

Hello.  Got this error today   - it all happen after Fusion 360 got maintenance day. All other old files i recently didn't work with - opens fine. 

Standard instructions   - i tried do download it and upload, then open - didn't helped. Then tried to open with win-rar and delete "FlatPatternAssetSubType" - there was no files like that, so doesn't  helped too.

Here is my file 


Thank anyone for attention, will be please a lot for any advice or help. It hurts to loose progress. 

[jhackney1972 · Accepted solution]

You attached file is not accessible.  You either did not give download permissions or your Fusion License does not support sharing this way.  Please just attach it to a reply Forum post.

[xxxxx55JQ9K2]

Thank you for fast reaction! I found solution almost after i made this post - just used Fusion 360 in browser, and then opened older version (- 1 day, lost not so much of work) (for me its mystery why in desktop software i cant choose versions...) 

also sad that  Standard instructions -  don't say anything about *try older file version* - i found that option just randomly exploring everything in browser version

after i found solution, could not find this post - searched my profile, *last activity* - there was nothing. 

sorry for *empty* post, and thank you.