When this box is checked, the XMODEM Tool automatically receives an incoming file. To turn off this feature, click this checkbox. This option is not available because you have not chosen the MacBinary file transfer method. If you want the XMODEM Tool to receive files automatically, click this checkbox. The sending computer must support this feature. When this box is checked, the XMODEM Tool retains the existing filename when it saves a newly received file. To name the file yourself, click this checkbox. This option is not available because the file transfer method chosen is neither MacBinary nor MacTerminal 1.1. To retain an incoming file's existing filename, click this checkbox. This button is not available because the file transfer method chosen is neither Straight XMODEM nor XMODEM Text. Click this button to select the application you will use to open received files. This option is not available because the file transfer method chosen is neither Straight XMODEM nor XMODEM Text. This code identifies the application that will open a document to receive a text file. This option applies to Straight XMODEM or XMODEM Text methods only. To select a different application, click the Select button. To change the number of times your Macintosh tries to resend a block of data, type a number from 1 to 32,767 here. To change the number of seconds your Macintosh waits to receive a block of data before giving up on the file transfer, type a number from 1 to 32,767 here. To define the size of data blocks transmitted and the type of error-checking performed, choose an item from this pop-up menu. To specify the XMODEM file transfer method you want to use, choose a protocol from this pop-up menu. Specifies 1,024-byte blocks with CRC-16 error-checking and no acknowledgments between sender and receiver. Appropriate for highly reliable connections only. Specifies 1,024-byte data blocks with CRC-16 error-checking. Specifies 128-byte data blocks with CRC-16 error-checking. Specifies 128-byte blocks with checksums. Transfers a text file, converting line endings between computers. This method won't transfer programs, applications, or system files; use for text files only. Transfers the data fork of the file, without converting line endings. This method won't transfer programs, applications, or system files; use for text files only. Transfers any Macintosh file, with automatic file reception. Transfers any Macintosh file.