Below is a list of files and a brief description of what they contain: dsnSeedE.2pf10 - These are MicroStation seed files that are used to create dsnSeedE.2pf100 standard profile / profile sheets. There are four dsnSeedE.2pf20 different scales (100, 50, 20, and 10), and each file dsnSeedE.2pf50 contains a single sheet. These seed files are not needed if using the DOT sheet-assembly process, which automatically attaches the sheet borders. Only if a user decides to create a generic profile / profile sheet will they need these files, which already have the sheet borders set up correctly dsnSeedE.pln10 - These are MicroStation seed files that are used to create dsnSeedE.pln100 standard full plan sheets. There are four different scales dsnSeedE.pln20 (100, 50, 20, and 10), and each file contains a single dsnSeedE.pln50 sheet. These seed files are not needed if using the DOT sheet-assembly process, which automatically attaches the sheet borders. Only if a user decides to create a generic full plan sheet will they need these files, which already have the sheet borders set up correctly dsnSeedE.pp10 - These are MicroStation seed files that are used to create dsnSeedE.pp100 standard plan and profile sheets. There are four different dsnSeedE.pp20 scales (100, 50, 20, and 10), and each file contains a dsnSeedE.pp50 single sheet. These seed files are not needed if using the DOT sheet-assembly process, which automatically attaches the sheet borders. Only if a user decides to create a generic plan and profile sheet will they need these files, which already have the sheet borders set up correctly dsnSeedE.prf10 - These are MicroStation seed files that are used to create dsnSeedE.prf100 standard full profile sheets. There are four different scales dsnSeedE.prf20 (100, 50, 20, and 10), and each file contains a single sheet. dsnSeedE.prf50 These seed files are not needed if using the DOT sheet-assembly process, which automatically attaches the sheet borders. Only if a user decides to create a generic full profile sheet will they need these files, which already have the sheet borders set up correctly