JOINT FILING AGREEMENT
The undersigned hereby agree that the Statement on Schedule 13D,
dated December 14, 2000 (the "Schedule 13D"), with respect to the Common Stock,
par value $0.01 per share, of PlanetCAD Inc., is, and any amendments thereto
executed by each of us shall be, filed on behalf of each of us pursuant to and
in accordance with the provisions of Regulation 13D under the Securities and
Exchange Act of 1934, as amended, and that this Agreement shall be included as
an Exhibit to the Schedule 13D and each such amendment. Each of the undersigned
agrees to be responsible for the timely filing of the Schedule 13D and any
amendments thereto, and for the completeness and accuracy of the information
concerning itself contained therein. This Agreement may be executed in any
number of counterparts, all of which taken together shall constitute one and the
same instrument.
IN WITNESS WHEREOF, the undersigned have executed this Agreement
as of the 14th day of December, 2000.
DASSAULT S.A.
By: /s/ Thibault de Tersant
---------------------------------
Name: Thibault de Tersant
Title: Executive Vice-President
Finance & Administration
DASSAULT SYSTEMES CORP.
By: /s/ Thibault de Tersant
---------------------------------
Name: Thibault de Tersant
Title: Secretary
