379 WordStar for MS-DOS Document 7.0 Word Processor The WordStar format is the default proprietary plain text format for the word processing application of the same name. It was created in 1978 by MicroPro, originally for the CP/M operating system but later was used on other operating systems such as PC/MS-DOS. It was the first word processor to render the doument on screen as it would appear when printed. WordStar files often have the extension ws or ws follwed by their version number but it is also common for them to have no extension. Text 1 Digital Preservation Department / The National Archives 02 Aug 2005 29 Jul 2022 fdd000552 Library of Congress Format Description Identifier Q105856544 Wikidata QID Identifier x-fmt/261 PUID ws File extension ws7 File extension 613 WordStar for DOS Document 7.0 Header symmetrical sequence 0f 128 bytes: first thee bytes, 0x1D 0x7D00, sequence type header = 0x00, version =0x70, last three bytes 0x7D00 0X1D 1 Absolute from BOF 0 1D7D000070{120}7D001D Is previous version of 1686 Wordstar 2000 Is subsequent version of 343 WordStar for MS-DOS Document