Apple Macintosh PowerBook 150 - Manual (Page 144)

Quattro (DOS), version 3.0
When saving documents in Quattro (DOS) version 3.0, be sure to save them
with the suffix .WK1 (rather than the default suffix, .WQ1). Quattro saves
documents ending in .WK1 in the Lotus 1-2-3 file format, which can be
interpreted by many Macintosh spreadsheet programs.
To open these Quattro documents on the Macintosh, add one of the following
assignments to the PC Exchange control panel:
DOS suffix Macintosh application Document type
.WK1 Claris Resolve ™ (version 3.0) TEXT
.WK1 Lotus 1-2-3 (version 1.0) TEXT
.WK1 Microsoft Excel (version 3.0) TEXT
Ventura Publisher (Windows), version 3.2
Documents in Ventura Publisher (Windows) version 3.2 are automatically
saved with the suffix .CHP.
To open these documents in Ventura Publisher (Macintosh) version 3.2, add
the following assignment to the PC Exchange control panel:
DOS suffix Macintosh application Document type
.CHP Ventura Publisher (version 3.2) VCHP
WordPerfect (DOS) version 5.1
WordPerfect (DOS) version 5.1 does not automatically add a suffix to the
names of documents. The easiest way to open WordPerfect (DOS) documents
on the Macintosh is by choosing the Open command from within an
application program.
136 Appendix B