DT- Text File Types

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TXT - Text

plain text files can be stored as TXT files.

TXT file will store character strings that can be readily viewed and edited by the user in many word processors and other software that is capable of handling plain text.

no addititional formatting info will be associated with the text itself, so whichever text editing program is used to open the file, its entire contents will be presented textually and not interpreted as formatting inofrmation.

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CSV - Comma separated Values

data that is structured in a tabular manner will have a common structure on every row.

when it is stored in a spreadsheet or database, the tabular structure has clearly visible columns.

in the CSV file format, data values are organised into rows that get stored on separate lines, but instead of being spaced out into columns, a comma character is used to separate the data values into their respective columns.

are plain text files that can be created, viewed and edited in a plain text editor, but they can equally be opened and edited using tools within spreadsheet and database packages which will interpret the comma as a column delimiter and the new lines as separators between rows.

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RTF - Rich Text Format

used for text based documents and supports basic formatting.

it allows the movements of the text files between different word processors and different operating systems.

documents scanned using OCR facility of a scanner are usually saved as RTF documents.

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PDF -Portable Document Format

holds text, formatting, images and potentially some editable regions which can be filled in by user.

viewed using many applications across a wide range of operating sysems and hardware platforms, making it very desirable for uploading documents for reading online.

can be downloaded for free or found embedded into commomly used programs e.g. web browsers.

created using a save or print command within a program or via a special converter tool.

graphics, spreadsheets, web pages and several other files can be exported to PDF format.

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PDF : Advanced features

powerul assistive technology embedded for those who are visually impaired.

powerful compression techniques to keep the file size very low .

password protection (and the use of digital signatures) to reduce the likelihood of breaches of copyright or to restrict access.

can store characters of specific fonts, so that there is no substitution of the fonts when it is opened on the computer.

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