https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537954#M145170 <P>download 7z program <A href="https://www.7-zip.org" target="_blank" rel="noopener">here</A></P><P>it should extract the downloaded files&nbsp;</P> Mon, 25 May 2020 10:47:37 GMT Ahmed_M_Heteba 2020-05-25T10:47:37Z https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9536955#M145167 <P>I did my laptop clean up just yesterday and deleted a lot of unnecessary files. Now I am finding that AutoCAD and Revit files which were downloaded during my online course cannot be opened. The AutoCAD files have turned into Blank document and revit files with an extension of YZ. I am new to Revit please help me out.</P> Sun, 24 May 2020 16:45:02 GMT https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9536955#M145167 Anonymous 2020-05-24T16:45:02Z https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537041#M145168 <P>you need to download an extraction program like winrar or winzip and extract the files&nbsp;</P> Sun, 24 May 2020 18:48:56 GMT https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537041#M145168 Ahmed_M_Heteba 2020-05-24T18:48:56Z https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537125#M145169 <P>I did install winzip and it worked to extract downloaded autocad files in revit but downloding revit file it is with extension of 7Z leads to a word document when downloading. PLEASE HELP.</P> Sun, 24 May 2020 20:43:49 GMT https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537125#M145169 Anonymous 2020-05-24T20:43:49Z https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537954#M145170 <P>download 7z program <A href="https://www.7-zip.org" target="_blank" rel="noopener">here</A></P><P>it should extract the downloaded files&nbsp;</P> Mon, 25 May 2020 10:47:37 GMT https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9537954#M145170 Ahmed_M_Heteba 2020-05-25T10:47:37Z https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9538737#M145171 <P>It worked. thanks alot.</P> Mon, 25 May 2020 18:39:45 GMT https://forums.autodesk.com/t5/revit-architecture-forum/revit-files-not-opening-in-revit-2021/m-p/9538737#M145171 Anonymous 2020-05-25T18:39:45Z