opening old files .cht (Hardvard Graphics DOS version)

[hluna]

hello people, thanks in advance for any comment or suggestion you can advice
we are looking for open old hardvard graphics files with extension .cht ( we use long time ago the DOS HG version) and our issue is to open this files just to view the chart like a image, not for use those files for enahance or convert to current versions
did you know some tool or procedure to open it? , txs again

[Malric]

Hi, did you try this software ? http://www.harvardgraphics.com/products/hgchartxl.asp ? Maybe it still supports that old format.